Answer:
D. Using excess water to cook potatoes
Explanation:
Using excess water to cook potatoes can reduce its mineral content.
Answer:
The action that can lead to losses of minerals from the vegetable is D) Using excess water to cook the potatoes.
Explanation:
Due to cooking many losses of minerals for example sodium, potassium, phosphorus, calcium, magnesium, iron, zinc, manganese, copper and various other food materials can be seen.Before and after cooking following changes take place in the mineral content of the vegetables.
(1) The mineral contents of cooked foods in mass cooking were on an average about 60-70 percent of those in raw or uncooked foods.
(2) Cooking losses were particularly high in minerals of vegetables.
(3) Among various cooking methods, loss of mineral was largest in squeezing after boil and in soaking in water after thin slice, followed by parching, frying and stewing.
(4) Cooking losses of minerals in meals cooked in home brought about the similar results as those by the mass cooking procedures.
The measures to prevent cooking loss are
(a) eating the boiled food with the soup
(b) addition of small amount of salt (about 1% NaCl) in boiling
(c) avoidance of too much boiling
(d) selection of a cooking method causing less mineral loss (stewing, frying or parching).
what is the Japanese tree frog's scientific name?
Answer:
Either Dryophytes japonicus or Hyla japonica
Explanation:
The scientific name for the Japanese tree frog is Hyla japonica, an amphibian species displaying the significant biodiversity found in these creatures.
The scientific name of the Japanese tree frog is Hyla japonica. Japanese tree frogs are a species found in East Asia, known for their unique calls and adaptation to both forest and human-modified environments.
They are an example of the biodiversity and complexity of amphibian life, much like the Australian green tree frog and the Limosa Harlequin Frog (Atelopus limosus), the latter of which is an endangered species from Panama known to suffer from a fungal disease called chytridiomycosis, as highlighted in several figures with the red lesions being indicative of this disease.
Regular aerobic exercise training affects carbohydrate (CHO) usage by ____. Select one: a. increasing the enzymatic activity associated with glycolysis b. increasing the number and size of mitochondria c. decreasing liver glycogen storage so more CHO is stored as muscle glycogen d. decreasing the oxidative capacity of muscle
Answer:
Option B, increasing the number and size of mitochondria
Explanation:
Mitochondria (power house of a cell) produce energy. When no exercise is done, the productivity of mitochondria reduces but it increases with regular exercise. In fact aerobic training helps mitochondria in making more energy by enhancing its efficiency. With one cycle of exercise, mitochondria produce 32 ATPs. Aerobic exercise allows more of oxygen to get to the muscle cells, the faster it happens the more energy is produced
Hence, option B is correct
Answer:
B, increasing the number and size of mitochondria
Explanation:
In the process of isolating DNA for transcription and translation, you digest the DNA with BamHI ad ligate the gene into a plasmid vector. However, even though all of the controls work, no transcription is obtained using your fragment. Working backward, you note that restriction digestion has removed approximately 250 base pairs from the 5' end of the gene. What is a possible explanation for this observation?
Answer:
the promoter was removed
Explanation:
Based on the scenario being described within the question it can be said that one possible explanation for this observation is that the promoter was removed. The promoter is a sequence of DNA which protein bind to in order to initiate transcription of a single RNA from the DNA downstream of it. Therefore if the promoter was removed, no transcription would be initiated, such as it happened in this situation.
During the Cambrian explosion approximately 535 to 525 million years ago, 1.all modern species of animals suddenly appeared. 2.animals rapidly diversified in the oceans. 3.a massive volcanic eruption nearly wiped out life on Earth. 4.great forests produced peat layers that were later transformed into coal.
Answer:
During the Cambrian explosion approximately 535 to 525 million years ago, 2. animals rapidly diversified in the oceans
Explanation:
Scientists have the theory that the Cambiran explosion, approximately 535 to 525 million years ago, was possible because of complex predator-prey relationships and increased atmospheric oxygen levels. All this situation promoted animal diversification. Thinking about evolution, animals directly evolved from protists.
Evolution of a species could occur as a result of changes in the
Options for the question have not been provided. They are as follows:
(1) DNA in muscle cells
(2) base sequences in liver cells
(3) genes in an egg cell
(4) number of chromosomes in a fetal bone cell
Answer:
(3) genes in an egg cell
Explanation:
Evolution is the change in characteristics of a species which it develops over the time. These changes can be a result of natural selection, genetic drift, founder effect etc. They are passed from one generation to another hence the alleles for them get fixed in the population.
For evolution to occur, change should take place in germ cells. Germ cells are the one which fuse to form the organisms of next generation. If there is a change in their genes, it would also appear in next generation, unlike changes in genes of somatic cells. Since egg cell is a germ cell it is the correct answer.
Answer:
genes in an egg cell
The mutations that made snake venom deadlier over time had a positive impact on those snakes. How might those mutations have had a negative impact on other organisms in that environment?
Answer:
Explanation:
Im not 100% sure, but I think that because the snake venom gets stronger, other species that have adapted to the weaker venom have a harder time fighting it. For example, the honey badger can fight of snake venom with its very thick skin and ability to sleep it off. However, if the snake venom got stronger/deadlier, the honey badger would have a much harder time fighting it, and might die.
Gene duplication has made the snake venom deadlier over time had a positive impact on the snakes. This is because this resulted into more production of venom.
What is gene duplication?
Gene duplication is a type of mutation. In this process, a region of DNA coding for a gene is copied twice. Gene duplication can occur as the result of an error in the recombination during meiosis or through a retro-transposition event in the gene. Duplicate genes are often immune to the selective pressure under which the genes normally exist.
Gene duplication is the common mechanism of evolution which is thought to be followed by natural selection for adaptive traits in a species. The adaptations produced through this process include the production of venom more toxic to specific prey in several lineages, proteins that pre-digest prey, and also a method to track down prey population after a bite.
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The defining characteristics of active transport are that this category of transport moves substances _________ their concentration gradient and requires ___________.
Answer:
Against; energy.Explanation:
1. Active transport is the transport of molecules, in that the particles move across a membrane from a region of lower concentration to a the region of higher concentration with the help of energy.
2. Active transport is the energy-requiring process and results in the transportation of molecules and ions across membrane against a gradient called uphill transport.
3. Example: The Sodium-Potassium pump.
Which of the following is most likely to create genetic variation in a population?
a
RNA polymerase errors during transcription
b
Helicase failure to unwind DNA during replication
c
DNA polymerase errors during replication
d
Misincorporation of amnio acids by tRNA during translation
Genetic variation is defined as the change in the genetic sequence of an organism of species. The genetic variation can be due to natural selection or mutation.
The correct answer is:
Option C. DNA polymerase errors during replication
Genetic variation can be caused by mutation. The mutation is the alteration of a genetic sequence, by inserting or deleting the nucleotide. The mutation can lead to the entry of a new allele in a population.
The chances of genetic variation in a population are most likely due to errors made by DNA polymerase during replication.
DNA replication is an essential process in which genetic material from the parent is transmitted to the daughter cell. However, the mutation or errors caused during the replication will lead to genetic variation.
Therefore, Option C is correct.
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DNA polymerase errors during replication (option c) are most likely to create heritable genetic variation in a population due to changes in the DNA sequence that can be passed on to daughter cells.
Explanation:The option most likely to create genetic variation in a population is c. DNA polymerase errors during replication. Errors made by DNA polymerase during DNA replication can lead to changes in the DNA sequence of the replicated DNA. These errors are a source of genetic variation because if they are not repaired, they become part of the genetic code in the daughter cells. It is important to note that while other options might involve errors in genetic processes, they usually do not result in heritable genetic variation. For example, errors made by RNA polymerase during transcription or by tRNA during translation generally affect only one molecule of mRNA or one protein, respectively, rather than the DNA that will be passed on to the next generation.
Furthermore, the semi-conservative mode of replication of DNA, as well as the proofreading and fixing of mistakes by Polymerase I and II, help ensure that errors during DNA replication are generally rare events.
In which of the following patterns of disease does the patient experience no signs or symptoms?
A) decline
B) prodromal
C) convalescence
D) incubation
E) incubation and convalescence
Answer:
The correct answer is option E) "incubation and convalescence".
Explanation:
The incubation period of an infectious disease is defined as the lapse between when a person is infected and the first symptoms are onset. While the convalescence stage is defined as the gradual recovery that a person experience once she or he overcomes the infectious disease. In both, the first and the last stage of the infectious disease (incubation and convalescence, respectively) the patient does not experience signs or symptoms of the disease.
In garden peas, the axial (A) flower position is completely dominant to the terminal (a) flower position. You cross a true-breeding axial flowering plant to a true-breeding terminal flowering plant. What is the genotype of the true-breeding axial flowering plant?
Answer:
AA
Explanation:
A true breeding organism for a particular trait is an organism that would produce progeny with the same trait whe self fertilized.
Hence, since axial flower is represented by the allele A, a true breeding flowering plant will have the genotype AA.
Axial flower (A) is dominant over terminal flower (a).
True-breeding axial flowering plant will have the genotype AA.
True breeding terminal flowering plant will have the genotype aa.
AA is crossed with aa.
AA x aa
offspring: Aa, Aa, Aa and Aa.
All the offspring will exhibit axial flowering.
A homozygous tomato plant with red fruit and yellow flowers was crossed with a homozygous tomato plant with golden fruit and white flowers. The F1 all had red fruit and yellow flowers. The F1 were testcrossed by crossing them to homozygous recessive individuals and the following offspring were obtained:Red fruit and yellow flowers - 41
Red fruit and white flowers - 7
Golden fruit and yellow flowers - 8
Golden fruit and white flowers - 44
How many map units separate these genes?
A) 17.6
B) 15
C) 17.1
D) 18.1
Answer:
I think it's A correct me if am wrong am not that smart am sorry if am wrong
Imagine a species with three loci thought to be on the same chromosome. The recombination rate between locus A and locus B is 35%, and the recombination rate between locus B and locus C is 33%. Predict the recombination rate between A and C.
Answer:
Recombination rate or recombination frequency between locus A and locus C is either 2% or 50%.Explanation:
As given,
Recombination frequency between locus A and B is 35%, means that the distance between A and B is 35 cM.
Recombination frequency between locus B and C is 33% , means the distance between B and C is 33 cM.
Therefore, if the locus C is present between A and B, then the recombination frequency between A and C would be 2%
A-----C ----------B
A---C= 2%
A----B= 35%
B---C= 33%
So, here the recombination frequency between A and C is 2%, means their distance is 2 cM.
If the locus C is as, A---35---B--33----C ; A-----B------C
A-----B= 35%
B------C= 33%
A-----C= 33+35= 68%
As rule, maximum frequency can not exceed 50%, as here the Recombination frequency between A and C = 50%.
As you hike from the highest elevation to the lowest elevation, you find three different species of related mice. None of them are found at the same elevation, and the vegetation changes at each elevation level.Using species C as a reference, you find that there are more genetic differences between species A and species C than between species A and species B. Which of the following statements would best reflect the mode of speciation in these mice?-Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original population.-Only genetic drift is responsible for the differences observed.-Species C arose from species A later than species B.speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.
Answer:
Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.
Explanation:
The new species can be formed in one of the three ways that are allopatric, peripatric, and parapatric speciation.
The allopatric speciation gives rise to new species due to the geographical barriers present between them and the peripatric speciation occurs when a small population enters into a new habitat.
In the given question, species A is more closely related to species B as to species C. This could be due to the allopatric speciation or peripatric speciation but it would depend on the number of the individuals of the population that dispersed to a different elevation which provided a new niche.
Thus, the selected option is correct.
What is the structures of carbohydrates?
Answer:
Answered below
Explanation:
Carbohydrates are biomolecules that contain hydrogen, carbon and oxygen. They are generally structured as a chain of carbons with hydroxyl groups, and ketones or aldehydes. The subtypes include;
Monosaccharides
Disaccharides
Polysaccharides
Monosaccharides are generally represented by the formula CH2On. They are classified based on the number of carbon atoms they have. Example, hexoses have 6 carbon atoms, pentose, 5, diose, 2 etc. They are also classified based on whether they have ketones or aldehydes. Examples of monosaccharides are glucose and fructose.
Disaccharides are formed when two monosaccharides form glycosidic bond through a dehydration reaction. Examples of disaccharides include; maltose, lactose, and sucrose which is made up of glucose and fructose. An oligosaccharide is made up of 2-10 monosaccharides and are often components of glycoproteins or glycolipids.
Polysaccharides, also called complex carbohydrates are long-chain carbohydrates made of repeated monosaccharides linked by glycosidic bonds. Examples are starches and glycogen.
10.
Choose the best answer.
The city limits represents which part of the cell?
cell membrane
lysosomes
cytoplasm
nucleus
11.
Choose the best answer.
Which level of organization is blood?
cell
organ
organ system
tissue
12.
Choose the best answer.
What happens during prophase?
the nucleus disappears
chromosomes move to the edges
cell life cycle
cells reproduce
13.
Choose the best answer.
What is the function of the mitochondria?
packaging proteins
energy
control mechanisms
reproduction
14.
Choose the best answer.
Contractions during labor are _____ feedback mechanism.
positive
mitotic
negative
meiotic
15.
Choose the best answer.
Simple epithelial tissue has _____ layer(s).
two
one
three
four
16.
Choose the best answer.
Which is NOT a classification of muscle tissue?
dense
cardiac
skeletal
smooth
17.
Choose the best answer.
How does a positive feedback loop respond to a variable?
changes the stimulus
makes no change
increases the stimulus
stops the stimulus
18.
Choose the best answer.
Lysosomes are responsible for _____.
waste removal
control mechanisms
reproduction
packaging proteins
19.
Choose the best answer.
An overgrowth of cells is called _____.
cytokinesis
meiosis
cancer
disease
20.
Choose the best answer.
What is the receptor’s role in the homeostatic control mechanisms?
determines the best response
sets the control point
sends the message to the variable
recognizes the variable
Answer:
10A
11A
12A
13B
14A
15B
16A
17c
18A
19C
20c
What was the control in Redi's experiment? A. Meat covered by jars that didn't have contact with air B. A straight neck flask to allow air to get in C. Uncovered meat that had contact with air D. A swan neck flask that prevented air from getting in
Answer:
The correct answer is option C. "Uncovered meat that had contact with air".
Explanation:
In 1668, the Italian scientist Francesco Redi performed a celebrated experiment to prove that maggots are not spontaneously created by placing fresh meat in each of two different jars: one opened and one covered with a cloth. Redi used an uncovered meat that had contact with air as a control, expecting that flies will come in and the maggots will be developed as they do in nature.
Answer: C
Explanation:
Im smart
I NEED THE ANSWER TO THE QUESTION!!! FRIST PERSON GETS BRAINLIEST!! I NEED THIS ANSWER BEFORE 1 hour.
Kilauea is a Hawaiian volcano that erupted in 1959, destroying vegetation and animal life over an area of 5 million square meters. Before the eruption, many organisms lived on the volcano in a rain forest community. The rain forest was dominated by ohia trees and two species of tree ferns. Small trees, tall shrubs, and herbaceous plants (plants lacking woody tissues) were also present. After the eruption, scientists closely monitored the area to track the recolonization of the devastated habitat. Scientists did not find any organisms living in this area for the first six months following the eruption. The table below shows the changes in one localized area that was covered by a massive amount of lava rock with many cracks and crevices. Despite the colonization of the area by several different types of organisms by year 9, the overall cover of the habitat was so low that the surface still looked barren. The community continued to change after year 9 of this study. a. Identify the ecological process taking place over the nine years of this study. b. Describe the expected distribution of the five original types
of organisms on Kilauea in another 20 years. Explain your reasoning.
Answer:
In the graph it shows the change in the ecosystem over the course of 9 years. Slowly plant life reappeared. Year one after the eruption, when the plant life started to grow back again, competition wasn't a problem and algae, mosses, and ferns grew back quicker than the rest although at the end seed plants were more common. So on that note, in another 20 years, the area will indeed come back as a forest like before. And most likely, animals will come back. There will be more seed plants than the rest of the organisms because at the end of the 9 year study, they grew more and more. But lichens won't be common because of their low number throughout the nine years.
Sorry if it its not quite correct
Where is the prostate gland located and what is its function
Answer:
Prostate gland is a main organ of reproductive system in male. Its main function is to secretes liquid substances in order to maintain health of sperm.
Explanation:
Prostate gland is present between two main organs of reproductive system i. e. bladder and penis. Its size is small equal to the size of walnut. The main function of prostate gland is to secretes prostate liquid. This liquid is the main part of semen.
Answer:
The prostate gland is just in front of the rectum. The urethra runs through the center of the prostate, from the bladder to the penis, letting urine flow out of the body.The prostate gland is a male reproductive organ whose main function is to secrete prostate fluid, one of the components of semen. The muscles of the prostate gland also help propel this seminal fluid into the urethra during ejaculation.
Explanation:
The prostate, a small muscular gland, produces an important fluid that transports sperm and keeps them safe.The prostate only appears in males. It secretes a fluid that keeps sperm alive and the genetic code they carry.
The prostate contracts and ejaculates its fluid into the urethra. During ejaculation, sperm travels along two tubes called vas deferens, they carry millions of sperm from the testes (where they are made) to the seminal vesicles. The seminal vesicles are attached to the prostate and add extra secretions to the semen before it is sent down the urethra. The prostate contracts during ejaculation, closing off the opening between the bladder and urethra and pushing semen through at speed.
To function properly, the prostate needs androgens (male hormones), such as testosterone and dihydrotestosterone (DHT).
Chromosomes are made of what wrapped around proteins
Answer:
deoxyribonuclei acid ,DNA
Explanation:
the chromosome is wrapped around the DNA
Chromosomes are coiled structures made of DNA and proteins called histones, essential for packaging genetic information. They contain genes that code for proteins and are condensed for transport during cell division.
Chromosomes are the structures within the nucleus of cells that carry genetic information. They are made of DNA that is tightly coiled around proteins called histones, forming a complex known as chromatin. During cell division, this chromatin condenses further to form the classic chromosome structure that is then transported to daughter cells.
These structures not only play a crucial role in genetics by containing genes, which code for proteins, but they also ensure the DNA is compact enough to fit within the nucleus of our cells. Human cells typically contain 46 chromosomes, consisting of 23 pairs, with one set inherited from each parent.
The tightly packed DNA around histone proteins can be envisioned as beads on a string with the 'beads' representing nucleosomes, a basic unit of DNA packaging. This packaging allows for efficient organization and safeguarding of genetic information during cell division and other cellular processes.
Ethidium bromide is a common intercalating agent used to visualize DNA in electrophoresis gels by associating with the DNA in the gels and fluorescing under UV light to reveal bands. How does ethidium bromide associate with the DNA?
Answer:
EtBr inserts between the stacked bases in the DNA double helix.
Explanation:
EtBr is used for visualizing DNA bands as it fluoresces under the UV illumination. EtBr is an aromatic compound that is capable of inserting itself between the stacked bases of the DNA double helix. The hydrophobic environment around the base pairs where the EtBr intercalates is responsible for the fluorescence. As the EtBr molecule intercalates between these base pairs the cation of EtBr sheds the water molecules associated with it and this causes it to fluoresce under UV light as water is a quencher of fluorescence.which statements best describe gases
Many scientists predict stronger storms, warmer oceans, and lower ocean pH in the future. If this occurs, how do you think these changes will affect Caribbean coral reefs?
Answer:
It wouldn't be able to survive
Explanation:
If the pH goes up than the coral reefs wouldn't be able to live and if they can't live there then there wouldn't be any life. There wouldn't be shelter for the fish and if there is no fish then the ecosystem would collapse.
A warming ocean: causes thermal stress that contributes to coral bleaching and infectious disease. Sea level rise: may lead to increases in sedimentation for reefs located near land-based sources of sediment. Sedimentation runoff can lead to the smothering of coral.
What are the effects of coral bleaching?Bleaching leaves corals vulnerable to disease, stunts their growth, affects their reproduction, and can impact other species that depend on the coral communities. Severe bleaching kills them.
How does ph affect coral reefs?The rising acidity of the oceans threatens coral reefs by making it harder for corals to build their skeletons. A new study details how ocean acidification affects coral skeletons, enabling scientists to predict more precisely where corals will be most vulnerable.
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In what ways do you think marine geography benefits marine science?
Marine biologists study biological oceanography and the associated fields of chemical, physical, and geological oceanography to understand marine organisms.
Why is it important to study marine science?Marine science recreates key role in the ongoing search to understand our world and to control its resources.
The interdisciplinary nature of the Marine Science curriculum will organise students to analyze deeply such co occuring issues as environmental alter, human clashes on the ocean, and biodiversity.
Thus, Marine biology is the study of marine organisms, their behaviors and relation with the environment.
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What is the correct sequence that describes the excitation and contraction of a skeletal muscle fiber?
Which of these energy transformations is taking place in the kelp as it carries
out photosynthesis?
O
A. Solar energy → Chemical energy
O
B. Potential energy → Kinetic energy
O
C. Chemical energy
Solar energy
O
D. Potential energy → Nuclear energy
SUBMIT
The specific type of energy transformation that takes place during photosynthesis is Solar energy to Chemical energy (Option A).
What is photosynthesis?Photosynthesis is a series of chemical reactions by which plant cells and algae use the energy from the sun (sunlight) to produce simple carbohydrates (i.e., sugars).
Photosynthesis needs oxygen, water (H2O) and sunlight or solar radiation to produce glucose (sugar) and carbon dioxide (CO2).
In conclusion, the specific type of energy transformation that takes place during photosynthesis is Solar energy to Chemical energy (Option A).
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Why do you think the left atrium and left ventricle are shown on the right side of the diagram?
Answer: Because the heart model is always in anatomical position. It is always based on the patient.
The left atrium and left ventricle are shown on the right side of the diagram because it is a frontal section of the heart, which presents the heart as if it were cut in half from front to back.
Explanation:The left atrium and left ventricle are shown on the right side of the diagram because the diagram is a frontal section of the heart, which means it shows the heart as if it were cut in half from front to back. In this view, the left side of the heart is on the right side of the diagram and vice versa.
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There are little birds that spend a great deal of time on the back of a rhinoceros and eat the blood sucking ticks out of the rhino's ears. Answer the following questions regarding these creatures' relationships. 1) The bird -rhino relationship is an example of: a) parasitism b) mutualism c) predator- pray d) commensalism. 2) The bird-tick relationship is an example of: a) parasitism b) mutualism c) predator- pray d) commensalism. 3) The tick-rhino relationship is an example of: a) parasitism b) mutualism c) predator- pray d) commensalism
Answer:
1. b
2. c
3. d
Explanation:
The bird-rhino relationship is an example of mutualism.
What do you mean by mutualism?Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions. While mutualism is highly complex, it can be roughly broken down into two types of relationship.
Mutualism describes the ecological interaction between two or more species where each species has a net benefit. Mutualism is a common type of ecological interaction.
Mutualisms occur in every aquatic and terrestrial habitat; indeed, ecologists now believe that almost every species on Earth is involved directly or indirectly in one or more of these interactions.
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A mother with type A blood and genotype IAi and a father with blood type B and genotype IBi have children who grow up and become regular blood donors. Of the possible children, which genotype would have the least valuable blood to donate?
IAIBAAAO
Although birds and mammals descended from differentancestors, they both have a four-chambered heart. Thisis the result of:_________
A) the necessity for rapid movement of blood.
B) convergent evolution.
C) genetic aberrations that resulted from mistakes insomatic cell division.
D) the simplification of the cardiovascular system
Answer: B) convergent evolution.
Explanation:
Convergent evolution in evolutionary biology is the process according to which, organisms that are not closely related, develop similar traits independently so that they will be able to adapt to similar ecological niches or environments.
Several examples of convergent evolution are shark and dolphin heads, bat and insect wings, and a four-chambered heart of birds and mammals. Analogous structures emerge from convergent evolution, but neither do homologous structures.
Hence, the correct option is B) convergent evolution.
Which of these explain how ice cores can be used to correlate atmospheric makeup and climate changes over time?
A) As ice melts into water, the thermal expansion traps gases from the atmosphere that can later be analyzed
B)As ice forms, a latent heat is released from the ice. This causes carbon dioxide levels to increase in the atmosphere.
C) As snow packs freeze and build up gradually over time, gases from the atmosphere are trapped within the ice and can be analyzed.
D) As snow falls onto an existing glacier, methane is released and carbon dioxide is trapped, indicating the makeup of the atmosphere at a particular time period.
Answer is C according to Usatestpep
Answer:
C if you are in USATestPrep