B
A barrage is a dam-like structure that is built in the tidal zone of an ocean to capture tidal energy.
Explanation:
It has sluice gates that can be controlled to harness the kinetic energy in the flow of water. The sluice gates also have turbines. During high tides, as the water flows into the barrage, it turns the turbines that generate electricity using the dynamo effect. During low tide, as the water recedes back to the oceans, and the barrage gets emptied, the water flow, again, turns the turbines.
Some barrages first capture the ocean water during high tide, until the dam-like structure is full, without generating electricity. When the tide is low, the sluice gates release the water and the turbines generate electricity. This kind is a one –way power generation.
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The correct statement that best explains how power is generated in a tidal power plant is (C). A barrage holds water at high tide, when the water is released, it turns the plant's turbines.
To understand why option C is the correct explanation, let's consider the process of power generation in a tidal power plant:
1. Tidal power plants are typically located in areas where there is a significant difference between high and low tides. This difference in water levels is essential for generating power.
2. A tidal barrage, which is a dam-like structure, is constructed across a tidal basin or estuary. The barrage includes a sluice gate that can be opened or closed to control the flow of water.
3. At high tide, the barrage gates are closed, trapping a large volume of water behind the barrage. This creates a height difference between the water levels on either side of the barrage.
4. As the tide begins to fall, the water level outside the barrage drops while the water level behind the barrage remains high due to the trapped water.
5. When there is sufficient height difference, the sluice gates are opened, allowing the trapped high-tide water to flow through the turbines installed in the barrage. The kinetic energy of the flowing water is used to turn the turbines.
6. The turbines are connected to generators, which convert the mechanical energy from the rotating turbines into electrical energy.
7. Once the water level behind the barrage has equalized with the outside water level, the gates can be closed again to start the process anew with the next high tide.
Option A is incorrect because it suggests that water is released both as the tide comes in and goes out, which is not how a typical tidal barrage operates. Option B is incorrect because it does not specify that the water is held back to create a height difference, which is crucial for generating power. Option D is incorrect because it vaguely refers to the force of the tides changing, which does not accurately describe the process of water being held back and then released to turn the turbines.
Which factor is most likely to have contributed to the high fertility rate in
Africa?
O
A. Lack of modern transportation systems
O
B. Lack of modern agricultural technology
O
c. Lack of economic opportunity for women
O
D. Lack of access to fresh water
Answer:
c. Lack of economic opportunity for women
Explanation:
Women with better economic opportunities, are able to position themselves better in relation to their body and their wills, than women with less economic opportunities. In addition, women with more economic opportunities are more likely to control their reproduction, while poorer women do not always have access to contraceptive methods and end up having more unscheduled children. This statement is common in places with high rates of social inequality, such as in Africa, where the high rate of fertility is directly linked to the lack of economic opportunity for women.
Which quality makes Earth particularly well-suited to support life? Apex
The position of the earth relative to the sun, its atmosphere, and the huge amount of water make the Earth particularly well-suited to support life.
Why is the earth is perfect for life?The distance between the earth and the sun is perfectly managed that it is not close enough to be burnt by the sun's heat or not too far to get the fraction of light in a year.The atmosphere of the earth is so thick and contains oxygen which is very important for life.The earth has enough water that help life to grow and thrive.Therefore, the position of the earth relative to the sun, its atmosphere, and the huge amount of water make the Earth particularly well-suited to support life.
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How does increasing the size of the habitat affect carrying capacity? Explain your answer. Recall the scenarios: 0-15, Little land, 15-30 years, Moderate land; 30-45 years, Ample land.
Answer:
The maximum number of a particular kind of species that a habitat can hold is termed as the carrying capacity of that place. The carrying capacity depends on the availability of resources present in an area. If the population of a species goes beyond the carrying capacity, then the organisms will compete for food and other resources.
When the size of a habitat is increased, the carrying capacity will increase. This is because there will be more space and resources to feed more species. As there will be more resources, even the growth of plants will be more in that area.
Answer:
The carrying capacity of a habitat is the maximum number of organisms a habitat can sustain over a long period of time. Carrying capacity is dependent on the number of resources available in an area. Therefore, if the resources available increase, the population of that organism will also increase. In the three scenarios we tested how the population of rabbits changed over time with different amounts of land. When there was little land, the rabbit population was consistent, never exceeding 100. As we changed the setting to moderate land, we saw a population growth of around 2.3% (around 230). Lastly, when there was ample land, the rabbit population reached its height at around 430.
When is the net movement of water equal to zero?
Answer:
Hypotonic solutions are those with less solute (again read as higher water potential). Isotonic solutions have equal (iso-) concentrations of substances. Water potentials are thus equal, although there will still be equal amounts of water movement in and out of the cell, the net flow is zero.
Explanation:
Final answer:
The net movement of water is equal to zero when the system is in a dynamic equilibrium, where the rates of water movement in and out of a region or across a boundary are balanced, resulting in no net change in volume.
Explanation:
The net movement of water is equal to zero in a state known as dynamic equilibrium. This can occur under various conditions in different contexts, such as in biological systems (osmotic equilibrium), in weather patterns (atmospheric moisture balance), and in geophysical settings (coastal dynamics). In a biological context, this typically refers to when the rate of water moving into a cell is equal to the rate of water moving out, and there is no net change in the water volume inside the cell. Similarly, in geophysical terms, a zero net water movement might be seen where there's a balance between inflow and outflow at a coastline.
For example, in coastal zones, if wave conditions are stationary (unchanging over time), and the velocity of water at the closed boundary (coastline) is zero due to a balance between different forces, no net movement of water occurs because inflow and outflow are in equilibrium. Additionally, in atmospheric transport, a zero net movement of water vapor could be represented as a balance, where loss due to factors like evaporation is compensated by a return flow through precipitation or other means at the regional scale.
Discuss the three theoretical models which describes structure of the DNA and describe the semi conservative replication of the DNA double helix structure. Furthermore, explain the differences between prokaryotic and eukaryotic DNA replication
Answer:
Three theoretical models for the replication of DNA had been proposed in the past. Out of these, the method of semi-conservative replication is most widely accepted.
Conservative replication: In this method, no DNA unwinding takes place. The parent DNA gives rise to daughter DNA.
Dispersive Method: In this method, the chains in the DNA molecule break and recombination occurs randomly. The daughter and parent strands will have segments of recombinant DNA.
Semi- conservative: In this method, the two strands of the double helix unwind. Each strand acts as a template for the synthesis of a new strand.
DNA replication is more complex in eukaryotes as compared to prokaryotes. Prokaryotes have a single point of origin from where the replication begins. Eukaryotes have multiple points of origin. Eukaryotic cells have a unidirectional method of replication whereas prokaryotes do not. Prokaryotes just have two polymerases whereas eukaryotes have more than four. The replication rate is faster in prokaryotes.
What happens to the image if you try to magnify it using 40X or 100X *
Answer: It gets bigger
Explanation:
Organization in which different cells are specialized for different functions, but each cell works alone, is characteristics of
A.cell-level organization
B.tissue-level organization
C.organ-level organization
D.organ system-level organization
Explanation:
B. tissue - level organization
Which of the following is not a typical pattern found in the Earth system?
a. rock cyclo
b. water cycle
carbon cycle
d. calcium cycle
Please select the best answer from the choices provided
Ooo
Answer:
D. calcium cycle
Calcium cycle is not a typical pattern found in the Earth system. :)
3. In what possible scenario would the female birds evolve to having the singing trait? (5 points)
Answer:
I think the birds stopped singing because there are too many predators that found and ate them. If the predators left, or if there were less, more birds will start singing because there will be a less chance of getting eaten or preyed on.
Final answer:
Female birds might evolve the singing trait if estrogens affect their sensory capabilities, which could lead to changes in mate selection and reproductive success. This trait may be selected for if there is a preference for certain songs associated with specific beak sizes that contribute to reproductive isolation.
Explanation:
In a scenario where female birds evolve to have the singing trait, we must consider several key factors related to natural selection and mate choice. Mate selection in birds is often mediated by song, and through this process, certain traits are preferentially selected as they enhance reproductive success. Should estrogens influence birds' sensory capabilities, it might make environmental cues for singing more salient, hence potentially leading to females singing if it offers a selective advantage.
One example could involve reproductive isolation, where populations of birds become separated. If beak size and shape influence song, and if females prefer songs similar to their own, singing could become a trait under sexual selection pressure in females. If this leads to preferential mating and strengthens reproductive barriers, it may result in females evolving the singing trait to ensure reproductive success and minimize detrimental hybridization.
How is a dihybrid Punnett Square different from a monohybrid Punnett square?
Answer:
A dihybrid cross tracks two traits. Both parents are heterozygous, and one allele for each trait exhibits complete dominance. A monohybrid cross is a breeding experiment between P generation (parental generation) organisms that differ in a single given trait.
Answer:
Dihybrid shows more phenotypes
Explanation:
For a monohybrid cross, individual alleles are used, whereas for a dihybrid cross, pairs of alleles are used. A Punnett square for a monohybrid cross is divided into four squares, whereas a Punnett square for a dihybrid cross is divided into 16 squares.
which type of mutation results in the formation of a protein with one inccorrect amino acid
The type of mutation that results in the formation of a protein with one incorrect amino acid is missene mutation.
Explanation:
Missene mutations are point mutations where there a change occurs in a single nucleotide. This results in a different codon and the production of a different amino acid. Missene mutation is one of the simplest types of mutation.
Sometimes missene mutation cause the production of a protein that is similar to the protein which was o be produced. In this case much variations are not produced. This is called conservative mutation.
Some amino acids are encoded by more than one codon and if a mutation results in a new codon which codes for the same amino acid there will be no change in the protein produced. This is called synonymous substitution.
Diseases like sickle cell anaemia are caused by missene mutation.
Explain how the wound healed itself over time
Skin injuries initiate a healing process involving blood clot formation and cell repair stages.
The first step involves the formation of a blood clot that stops bleeding. Various cells participate in repairing the wound, with fibroblasts aiding in collagen replacement and angiogenesis promoting new blood vessel growth.
Carbon dioxide made by cells leaves your body through the respiratory
system by moving from the
A. alveoli to the bronchi to the bronchioles
B. bronchi to the bronchioles to the nose
C. trachea to the bronchi to the bronchioles
D. bronchioles to the bronchi to the trachea
Answer:
The answer is D
Explanation:
After gaseous exchange take place in alveoli, unwanted gases such as CO2 will move from alveoli -> bronchioles -> brochi -> trachea -> nose .
which term refers to the behavior of two species attempting to use the same living space , food source ,and water source?
You have learned in class that changing the pH or temperature of the environment can denature an enzyme. When an enzyme
is denatured, it's shape changes, preventing it from forming an enzyme-substrate complex and slowing the reaction or even
causing it to stop. Your group is curious about what might denature catalase. What would be the most appropriate hypothesis to
use if you wanted to test conditions that could denature catalase?
If the amount of liver is increased, then the reaction rate will increase
If the hydrogen peroxide is warmed, then the rate of the reaction will
increase
If the liver is placed in an acidic solution, then the reaction rate will
decrease
If the concentration of hydrogen peroxide is decreased, then the reaction
rate will decrease
Answer:
If the liver is placed in an acidic solution, then the reaction rate will decrease.
Answer:
The correct answer is "If the liver is placed in an acidic solution, then the reaction rate will decrease".
Explanation:
Enzymes are proteins that catalyze reactions and are active at specific environmental conditions. One important condition is the pH, where each enzyme work best at a specific pH. In the case of the enzyme catalase, if the liver is place in an acidic solution, then the reaction rate of the enzyme will decrease. At acidic conditions catalase will start to denature, which will affect its activity and will slow down the reaction rate of the enzyme.
which of the following is not a fossil fuel
Answer:
wood
Explanation:
Jordan discovered an organism in the back yard that obtains energy by consuming other organisms.
Which term best describes the organism?
A
producer
B
autotroph
C
plant
D
heterotroph
Answer: Heterotroph
A heterotroph is an organism that can’t produce its own food, so it takes it from other organisms. For example, animals eating other animals.
A heterotroph is the organism that obtains energy by consuming other organisms.
Heterotroph is an organism that cannot take an inorganic substance and create organic matter for itself, forcing it to feed on other living things.
Heterotrophic organisms feed on other organisms to obtain organic matter already synthesized because they do not have an independent food production system.They obtain energy, nitrogen and carbon by consuming other organisms.Therefore, we can conclude that heterotrophs always depend on another organisms for their subsistence, since they obtain their energy from an external source of organic matter.
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This assessment is a presentation on photosynthesis and cellular respiration. Your presentation should include the following:
1. Detailed descriptions of what happens to the carbon atom:
a. during photosynthesis (the light-dependent reactions and the light-independent reactions)
b. transitioning between photosynthesis and respiration
c. during cellular respiration or fermentation
2. An explanation of how the carbon atom is transferred between molecules. Please include descriptions of the molecules involved in each of the processes above and be sure to mention the movement of electrons and energy as the carbon atom moves from one reaction to another.
3. Complete sentences should be used in all written descriptions and explanations.
The carbon dioxide molecule (CO2) is split into carbon and oxygen during this transition. Some of the oxygen is released and the carbon molecules are mixed with water creating H2O. If you create an equation for the reaction between carbon and water you will see that the product is glucose. Therefore, plants make their food(glucose) from photosynthesis, and release oxygen.
In cellular respiration the carbon atom is split into two pyruvate molecules during glyoclysis. Then, the pyruvate is made into acetyl-CoA. The acetyl-CoA is oxidized in the citric acid cycle to make two molecules of CO2 per cycle. In fermentation glucose, after turning into 2 pyruvate molecules, is converted into a waste product so it can create NAD+ for glycolysis.
How carbon reacts during photosynthesis(light-dependent reaction)
In the light-dependent reaction of photosynthesis it converts light energy into chemical energy, producing ATP and NADPH. ATP and NADPH are both used for the light-independent reactions. This reaction occurs in the stacked thylakoids of the chloroplasts.
What happens to the carbon atom during cellular respiration & fermentation?
Photosynthesis
Carbon transferred between molecules
Carbon atoms movement between molecules
Cellular Respiration & Fermentation
What happens to carbom atoms during the transition between photosynthesis and respiration
How carbon reacts during photosynthesis(light-independent reaction)
Photosynthesis & Respiration
During the light-independent reaction of photosyntehsis synthesized ATP and NADPH are used to provide energy for the synthesis of glucose and other organic molecules from nonorganic carbon dioxide & water. The carbon atoms are "fixed" from CO2 to the carbon skeletons of existing organic molecules. This reaction occurs in the stroma of the chloroplasts.
Photosynthesis
2.06 Introduction to Photosynthesis
Andre Carvajal
Ms. Melanie Joseph
Carbon atoms are transferred between molecules in a variety of different ways. First, electrons are moved in the electron transport chains within the thylakoid membrane. Every 12 of the three-carbon molecules made, two of them are removed to build organic compounds and 10 continue on in the chain. The removed molecules bond together forming six-carbon sugar like glucose. Photosynthesis removes carbon dioxide from the atmosphere and releases oxygen gas. Cellular respiration uses oxygen and releases carbon dioxide. Some microorganisms go through anaerobic alcoholic fermentation, producing ethyl alcohol and carbon dioxide.
Here is a presentation on photosynthesis and cellular respiration
What happens to the carbon atom during photosynthesis?Photosynthesis is the process by which plants and other autotrophs use sunlight to convert carbon dioxide and water into oxygen and glucose. The carbon atom is transferred between molecules in a series of reactions that take place in two stages: the light-dependent reactions and the light-independent reactions.
During the light-dependent reactions, the energy from sunlight is used to split water molecules into hydrogen and oxygen. The oxygen is released into the atmosphere, and the hydrogen is used to create ATP and NADPH, which are energy-carrying molecules.
During the light-independent reactions, the ATP and NADPH from the light-dependent reactions are used to convert carbon dioxide into glucose. The carbon atom is transferred from carbon dioxide to a molecule called ribulose bisphosphate, and then it is passed through a series of reactions that eventually produce glucose.
How carbon atom is transferred between molecules:
The carbon atom is transferred between molecules in a series of chemical reactions. In the light-dependent reactions, the carbon atom is transferred from carbon dioxide to ribulose bisphosphate by a process called carbon fixation. In the light-independent reactions, the carbon atom is passed through a series of reactions that eventually produce glucose.
The molecules involved in photosynthesis and cellular respiration include:
Carbon dioxide: A gas that is made up of one carbon atom and two oxygen atoms. It is the starting material for photosynthesis and the end product of cellular respiration.
Water: A liquid that is made up of two hydrogen atoms and one oxygen atom. It is the starting material for photosynthesis and is used to produce oxygen.
Glucose: A sugar that is made up of six carbon atoms, twelve hydrogen atoms, and six oxygen atoms. It is the end product of photosynthesis and is the main source of energy for cells.
ATP: A molecule that stores energy in its chemical bonds. It is produced during photosynthesis and cellular respiration and is used to power cellular activities.
NADPH: A molecule that carries electrons. It is produced during photosynthesis and is used to power cellular reactions.
The movement of electrons and energy
The movement of electrons and energy is essential for photosynthesis and cellular respiration. During photosynthesis, the energy from sunlight is used to split water molecules and produce ATP and NADPH. These molecules are then used to convert carbon dioxide into glucose.
During cellular respiration, glucose is broken down to produce ATP and carbon dioxide. The electrons from glucose are passed through a series of reactions that eventually produce ATP. The energy from these reactions is used to power cellular activities.
Transitioning between photosynthesis and respiration
The processes of photosynthesis and cellular respiration are closely linked. The products of photosynthesis, such as ATP and NADPH, are used to power cellular respiration, and the products of cellular respiration, such as carbon dioxide, are used as a starting material for photosynthesis.
In some cases, organisms can switch between photosynthesis and respiration depending on the availability of sunlight. For example, plants can switch to respiration at night when there is no sunlight available.
Conclusion
Photosynthesis and cellular respiration are two essential processes that allow life to exist on Earth. These processes convert light energy into chemical energy, which is then used to power cellular activities. The movement of electrons and energy between these two processes is essential for life.
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Which is one of the bases found in DNA?
Answer:
a, c, t, g
Explanation:
uracil (u) is in place of t in rna
After a natural disaster such as a hurricane or tornado, what will happen in the damaged ecosystem?
A) Nothing; it will remain uninhabited.
B) A new, different ecosystem will evolve.
C) An ecosystem like the previous one will be re-established.
D) No one really knows what to expect after a natural disaster.
Answer:
C
Explanation:
C. It's right.
Answer:
An ecosystem like the previous one will be re-established
Explanation:
HELP! 50 POINTS!! WRITE IN YOUR OWN WORDS! WILL MARK BRAINLIEST
Evolution is sometimes a controversial topic. Write a paragraph (minimum 5 short paragraphs) including the following:
What is your opinion about evolution?
Do you think there should be a controversy?
Do you think alternatives to evolution should be taught in schools?
Why or why not?
Answer:
Evolution in my opinion is something that is up to the individual to believe. The theory of evolution has neither been proven or disproven. I think there should be a controversy so that we can either prove the theory, or disprove it and think of a different theory. Teaching alternatives in school would be a great idea. It would let the student derive for themselves which one they think is more accurate.
Explanation:
A neuron in the skin detects tissue damage in the skin during a burn and informs the brain and spinal cord. This neuron is part of what pathway?
Explanation:
The neuron is part of the somatosensory pathway
The nervous system is subdivided into; the central nervous system (CNS), which includes the brain and spinal cord, within the vertebral column; and the peripheral nervous system, which includes nerves that branch into the rest of the body from the brain and spinal cord. Nervous tissue responds to electrical impulses, allowing for communication between different regions of the body.
The peripheral nervous system is further divided into the somatic nervous system responsible for carrying out sensory and motor information between the peripheral nervous system- including sensory organs like the eyes; and central nervous system; and the autonomic nervous system which regulates involuntary bodily functions like heartbeat, breathing and blood flow. The ANS is mainly acts unconsciously and affects smooth muscle and internal organs. It is related to homeostasis- where the body maintains a constant internal balance in pH, temperature, blood pressure etc.
Somatosensory pathways contain primary, secondary, and tertiary neurons which are capable of processing information about vibration, touch, temperature, and pain- information is passed on after receiving stimuli from the body's internal or skin receptors. Thus the precision is greater in the lips and fingers (directly involved in tactile interactions with stimuli) than on the back.
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Yabine is studying energy from food in her nutrition class. She learns that fats, proteins, and carbohydrates can store different amounts of energy because they have different chemical
Answer:
She learns that fats,proteins and carbohydrates can store different amount of energy because they have different chemical structure or construction.
Explanation:
Carbohydrate,protein and fat differ in their chemical structure.
Carbohydrates are the polyhydroxy aldehydes or polyhydroxy ketones.Proteins are the polymer of amino acids joined by peptide linkage whereas fats are the monomer of fatty acid.
Monosaccharide,amino acids and fatty acid differ in their chemical and biochemical structure and also contain different number of carbon atoms.
That"s why carbohydrate,protein and fat can store different amount of energy.
Carbohydrates, lipids, and proteins are energy-yielding nutrients that the body breaks down into molecules small enough to be absorbed and converted to ATP. These nutrients can be obtained from plant and animal foods and can sustain life for several weeks.
Explanation:The energy-yielding nutrients are primarily carbohydrates and lipids, while proteins mainly supply the amino acids that are the building blocks of the body itself. You ingest these in plant and animal foods and beverages, and the digestive system breaks them down into molecules small enough to be absorbed. The breakdown products of carbohydrates and lipids can then be used in the metabolic processes that convert them to ATP. Although you might feel as if you are starving after missing a single meal, you can survive without consuming the energy-yielding nutrients for at least several weeks.
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Name of the organ systems that you use for walking from the front of the school yard
Answer:
Leg
hope so , joint
may be
When referring to height in terms of genotypes, is there a reason why V and v are used to commonly represent the alleles?
Answer:
Explanation:
Geneticists use letters to represent alleles of different characters.
(Alleles: one of the two or more alleles of a character.)
A single letter is used to represent both the alleles of a particular character.
A capital letter represents a dominant allele, while a small letter represents a recessive one.
The letters do not just have one standard representation. same letter can be used to represent different characters. However, the letters may relate to the allele. For example: the letter 'B' can be used to represent Brown eyes.
Ecologists will often represent the amount of potential food available for each trophic level in an ecosystem with a(n)
Answer:
Ecologists will often represent the amount of potential food available for each trophic level in an ecosystem with a(n) biomass pyramid.
Explanation:
A biomass pyramid can be defined as a diagram which quantifies the biomass as we move up the trophic levels in a pyramid. It is often plotted as the food (in calories or grams) per unit area. The biomass pyramid quantifies the biomass present at each trophic level.
Hence, a pyramid of biomass is the best way to represent the amount of food available at each trophic levels in a pyramid.
Ecologists will often represent the amount of potential food available for each trophic level in an ecosystem with a biomass pyramid.
Explanation:
Ecologists represent various structures of trophic levels in an ecosystem using ecological pyramids. Ecological biomass pyramids graphically depicts the bioproductivity or the amount of biomass produced and available in a unit area of a trophic level in an ecosystem.
The producers, are at the highest level, produce the highest amount of biomass is at the base of the pyramid; whereas, the tertiary consumers are at the least level with the least amount of biomass is at the top of the pyramid.
Ecologists use these data to depict the primary production of biomass at each level and the net productivity reached in an ecosystem.
Which of the following is NOT an advantage of hydroelectric power?
A. It is clean, safe, and efficient.
B. It does not contribute to air pollution.
C. Only certain locations are suitable for building a dam.
D. Water is naturally renewed by the water cycle.
Answer: C is the correct answer, only certain locations are suitable for building a dam.
Explanation:
stion 5
An increase in carbon dioxide in the atmosphere will MOST likely
affect which type earth activity?
complete
hts out of
Select one:
O
a. Volcanic eruption frequency
Flag
estion
O
b. Mantle convection rate
O
c. Cave formation rates
O
d. Earthquake frequency
Check
Next pa
Answer:
An increase in carbon dioxide in the atmosphere will MOST likely affect C: Cave formation rates .
Explanation:
"Carbon-di-oxide" is an important gas which 'controls' the Earth's temperature. CO2 including methane are greenhouse gases which absorb a lot of energy and then re-emit it. Without these gases, earth would get frozen. But, if these gases are in excess, then temperature of earth would rise like that of Venus, up to 400 degree Celsius.
If CO2 increases, there will be an increase in cave formation activity. Rain water takes CO2 from the air and penetrates in the soil. This results in formation of "limestone" as 'carbonate' accumulates in the soil. This forms 'cave of limestone' with the help of 'groundwater' as limestone dissolves easily in water.
Answer:
Less build up of ice at poles
Explanation:
The increase of carbon dioxide will increase global warming, which will cause the global temperature to increase, and cause less ice poles because of the high temperature.
Explain why plants along the road often die after the road is sprayed with a salt solution to melt ice
Explanation:
The salt solution is meant to lower the ice melting point hence keep most of the water from turning into ice even at zero degrees temperatures. The salts are dissolved in the water to form a salty solution that percolates the ground and reach plant roots. Because the salty water is hypertonic (more concentrated) to the cell cytoplasm of the plant roots, water is drawn from the plant by osmosis. This is the reversal of normal plant root absorption of water from the soil. This causes the plant root to wither and subsequently the whole plant to die. Remember in osmosis, water moves from the less concentrated solution to the more concentrated solution through a semipermeable membrane.
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Molten materials cool at different rates. Which property of a mineral does this affect?
color
luster
crystal size
crystal shape
Answer:
The correct aswer is crystal size.
Explanation:
Cooling rate affects to the size of the crystal formed by cooling a molten material. A fast cooling produces small crystals whereas slow cooling produces large crystals. At a slow cooling rate, crystals have more time to grow and therefore they are larger than those are formed at a fast cooling rate.
Answer:
Crystal Size Is correct
Explanation:
Edg. 2020