Answer:
C.
Explanation:
Natural selection is how animals adapt to places for example how giraffes got long necks for eating plants.
Hope this helps
Evolution is the shift of hereditary features or characteristics in a population of organisms over a long period of time. Natural selection, a phenomena, is the process that best explains evolution. Hence option C is correct .
What is Evolution ?Natural selection is the process by which some inherited traits—like the hue of a fish's skin, a person's height, or the contour of a leaf—are preferred within a population. A population is a collection of creatures that reproduce and mate together.
According to the idea of evolution in biology, the many species of plants, animals, and other living things on Earth descended from earlier species, and their recognizable differences are the result of changes made by subsequent generations.
Evolution is governed by four principles: variation, inheritance, selection, and time.
These are regarded as the elements of natural selection's evolutionary mechanism. Hereditary variation serves as the foundation for Darwin's main point about evolution.
Darwin had learned from his experience with breeding animals and plants that it is possible to create differences that are "useful to man." Therefore, he concluded, natural changes must take place that are advantageous to or helpful to the organism itself in its struggle for survival.
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The diameter of Earth is 12,756 km. How many times greater is the sun’s diameter than the diameter of Earth? Show the math.
Final answer:
The sun’s diameter is approximately 1.39 million kilometers, which is about 109 times greater than Earth’s diameter of 12,756 km.
Explanation:
The question asks how many times greater the sun’s diameter is than the diameter of Earth. Given that Earth's diameter is approximately 12,756 km, we can compare this to the sun's diameter. The sun’s true (linear) diameter is approximately 1.39 million kilometers, which is about 109 times the diameter of Earth.
To show the math, we perform a simple division:
Sun's diameter / Earth's diameter = 1,390,000 km / 12,756 km ≈ 109
Therefore, the sun's diameter is roughly 109 times greater than that of Earth.
Because the world has limited resources, what do people have to make?
demands
choices
scarcity
opportunity costs
Answer:
choices
Explanation:
Due to limited resources in a our wold, people have to make do with choices because it is nearly impossible to have all what we want.
The two main problems in economics revolves round:
Limited resources Unlimited wantsThe cost of choosing one item over another and forgoing it is called the opportunity cost.
Choices are often made by drawing up a scale of preference from which the most pressing needs can first be attended to. If there are enough resources, there wouldn't be a need to make choices when demanding for certain goods and services.Final answer:
Because of the world's limited resources, people must make choices under the condition of scarcity, which involves the opportunity cost of forgoing the next best alternative. Scarcity drives economic systems and decision-making processes within them, influencing how resources are allocated.
Explanation:
Understanding Economic Choices and Scarcity
Because the world has limited resources, people have to make choices. Scarcity is a fundamental economic problem where the wants and demands of individuals and society as a whole exceed the resources available to satisfy them. Every choice made has an associated opportunity cost, which is the value of the next best alternative that is forgone when a decision is made. Whether it is an individual deciding how to spend their time or a government allocating resources for public projects, decisions must account for the inherent scarcity of resources.
Scarcity leads to trade-offs, compelling individuals, businesses, and governments to prioritize and decide between competing alternatives. The limited nature of resources means individuals cannot have everything they desire, thus the concept of scarcity directly influences economic systems and the choices made within them. These choices reflect the allocation of resources such as labor, land, and capital—and how they are put to use in producing goods and services.
Ultimately, the concept of scarcity is central to understanding economics. It is what drives the need for an economic system and helps to explain behaviors and patterns observed in the circular flow model of economies. The scarcity of resources, including the finiteness of time, makes the study of economics crucial to managing the ways in which these limited resources are distributed and used to fulfill human needs and wants.
The amount of heat required to raise the temperature of 1 kg of a substance by 1°C is the definition of
which term?
Answer:
The amount of energy required to raise the temperature of 1Kg of a substance by 1°C is known as 'specific heat' and this varies from substance to substance. The unit of measurement is 'Joule' - the energy dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second
Explanation:
Which Australian river provides hydroelectric power and water for irrigation?
A.
the Darling
B.
the Murray
C.
the Cooper
D.
the Waikato
Answer:
B. The Murray
Explanation:
The Scheme collects and stores the water that would normally flow east to the coast and diverts it through trans-mountain tunnels and power stations. The water is then released into the Murray and Murrumbidgee Rivers for irrigation.
The Australian river provides hydroelectric power and water for irrigation is the Murray. Thus the correct option is B.
What is River?A river is referred as a source of fresh water which is mainly used in drinking and irrigation in the agricultural field. In some cultures, the rivers have seemed as a source of devotion and often poeple worship them.
The Murray River is one of the world's longest navigable rivers. The South Australian border is where it is primarily found. The longest river in Australia is that one. 1,558 miles or 2,508 kilometers make up its length.
The largest hydroelectric project in Australia is the Snowy Mountains Scheme. It offers irrigation-related water for the Murray and Murrumbidgee Rivers as well as additional electricity.
Therefore, option B is appropriate.
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28. Which of the following threaten the wet lands of Northern Europe?
Select the 3 that apply then give an example for each:
land development
nuclear power plants
drainage for peat production
am construction
bottom trawling
increased ship traffic
Coastal areas tend to have a ______ variation between seasons?
High or low
Put these countries in order according to area, from largest to smallest! Russia, canada,china,usa
To answer this question, first, we need to find each country´s area:
Russia: 6,601,668 square miles.
Canada: 3,855,103 square miles.
China: 3,705,407 square miles.
United States: 3,796,742 square miles.
Then, rearrange them accordingly, from largest to smallest. Russia, with over 6 million square miles is the largest, and China, with 3,705,407 square miles would be the smallest out of the countries provided.
Take into consideration that these numbers include the total area of each country, including both land and water areas within the international boundaries.
Considering their area, the correct orfder from largest to smallest is
Russia 6,601,668 square miles.Canada 3,855,103 square miles.USA 3,796,742 square miles.China 3,705,407 square miles.Learn more about countries´area here: https://brainly.com/question/139410?referrer=searchResults
46. How do geographers use technology? Write one to two paragraphs in which you discuss
various technical tools and how they help geographers better understand and explain the
human and physical world.
What tools do geographers use to understand the world? 1.) Geographic maps/charts 2. ... What are two ways geographers describe the location of a place? 1.
Geographers generally use the satellites, GPS, and GIS in order to collect and portray the information about the earth.
What tools do geographers use explain the human and physical world?Geographers are the physical scientist, social scientist or humanist whose main area of study is geography, which include the study of the Earth, the distribution of its land, features etc. They use maps and global positioning systems(GPS) in their study.
Geographers uses the computer-based tools, Geographic Information System(GIS) to analyze the information. GIS helps the geographers in storing the data into a georeferenced database which can be viewed via maps.
The major tools that the geographers use to understand and explain the human and physical world are the GPS, Maps, Satellites, Sonar etc.
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Animals often behave in certain ways that can increase their reproductive success. Read the passage about a specific animal behavior. Then, follow the instructions below.
Fifteen-spined sticklebacks are small fish that live in the northeastern Atlantic Ocean. Male sticklebacks build nests for their eggs. Then, the males mate with multiple females. After a male mates with a female, she lays eggs in the male's nest and then leaves. The male guards his nest until the eggs hatch. As he guards the nest, he waves his fins near the eggs for short periods of time. This behavior is called fanning.
By fanning his nest, a male stickleback can help bring fresh water and nutrients to the eggs. The more frequently a male fans his eggs, the more eggs hatch.
Why might fanning eggs increase the reproductive success of a male fifteen-spined stickleback? Complete the claim below that answers this question and is best supported by the passage.
Fanming eggs increases the chance that........................................................................................
A: The male will build a nest for female to lay eggs in.
B: The male will spend more energy while waving his fins.
C: The male's offspring will become adults.
Answer:
c. offspring will become adults.
Answer:
C
Explanation:
The geological era about which we have the least information
Answer:
im not very sure on this one but im pretty sure it would be BC
Explanation:
we dont know anything about humans or animals or how and where they lived.
the map below shows the location of some natural resources in north america. according to the map, which natural resources is found in canada, the united states, and mexico??
A. Uranium
B. Lead
C. Iron
D. Gold
Answer:
C. Iron
Explanation:
It is Iron because it is asking which resources does United States, Canada and Mexico have all together and if you look at the map the same resource they have in common is iron
1. What are renewable energy technologies? What three aspects are used to
something is considered a renewable energy technology?
Answer:
Renewable energy technologies produce power, heat or mechanical energy by converting those resources either to electricity or to motive power. solar energy, wind, falling water, the heat of the earth (geothermal), plant materials (biomass), waves, ocean currents, temperature differences in the oceans and the energy of the tides.
Explanation:
Final answer:
Renewable energy technologies are energy sources that can be replenished within a short timeframe. They include wind, solar energy, hydropower, geothermal energy, and biofuels. These technologies must satisfy three criteria to be considered renewable.
Explanation:
Renewable energy technologies are sources of energy that can be replenished within a short timeframe. These include wind, solar energy, hydropower, geothermal energy, and biofuels. To be considered a renewable energy technology, three aspects are used:
The energy source must be able to regenerate itself or be replenished within a human lifespan.
The energy source should not deplete or harm the environment significantly.
The energy source should have a minimal impact on climate change.
For example, wind turbines convert the kinetic energy of moving air into electrical energy, and solar panels harness sunlight to produce electricity. These technologies are considered renewable because the wind and sunlight are constantly available and can be used without depleting natural resources.
This simple experiment is an example of what process on Earth?
Answer:
You got to give me the info
Explanation:
Which form of government does Morocco have? socialism democracy communism constitutional monarchy
Answer: Morocco is a parliamentary constitutional monarchy.
Explanation: the government of the country is led by the Prime Minister of Morocco. Under this form of government, the monarch performs governmental functions with regulations to the Constitution. I hope this helps :).
Answer:
constitutional monarchy
Explanation:
do convection currents occur in the upper mantle?
Answer:
Yes
Explanation:
Heat in the mantle comes from the Earth's molten outer core, decay of radioactive elements and, in the upper mantle, friction from descending tectonic plates. ... While conduction seems the more obvious method for heat transfer, convection also occurs in the mantle.
Plzzhelp! How does geography influence spatial patterns?
Explanation:
Settlements provide a spatial focus for most human activity, and therefore also strongly affect local land cover, water quality, and biodiversity. Analyzing the spatial patterns of settlements can contribute to greater understanding of land use changes, ecological processes, cultures and lifestyles, etc
Hope this helps.. even a little...
Final answer:
Geography influences spatial patterns through physical features, climate, human factors, and access to resources.
Explanation:
Geography influences spatial patterns in various ways. For example, physical features such as mountains, rivers, and coastlines can create barriers and influence the distribution of settlements. Climate and weather patterns can affect the types of vegetation and wildlife present in an area, which in turn can impact human activities and occupations. Access to natural resources like water and minerals can also shape spatial patterns by attracting or repelling human populations.
Additionally, human factors such as culture, language, and political boundaries can influence spatial patterns. Different cultures may have different settlement patterns or land use practices. Language can shape the distribution of languages and dialects across a region. Political boundaries can determine the organization of cities and governments.
Overall, geography plays a crucial role in shaping spatial patterns by influencing both the physical and social aspects of an area.
Fill in the blanks
Increased urbanization leads to a phenomenon called
Answer:
urbanization
Explanation:
answer above
True or False: Mountain ranges and volcanic islands can result from changes to Earth’s surface over a long period of time. Help please, I'm dumb and can't remember the answer to this question.
Answer:
True
Explanation:
Because the Earth goes through several physical changes over a period of time. In the scenarios that you described, they are formed when Tectonic Plates run into each other.
what creates Ocean currents
Answer:
Upwelling and Downwelling
Explanation:
The Earth's oceans have differing temperatures and sediment levels. Water with more sediment is usually colder, and thus is more dense and sinks. Water with less sediment is usually warmer, and thus is less dense and floats. Through a global conveyor belt of water, cold water starts at the the poles, cycles to the equator, where it is warmed, and then cycles back to the poles.
3. Buddhism began in this location:
The Fertile Crescent
The Indus Valley
The Nile Delta
The Shia Crescent
Answer:
in the indus valley
Explanation:
hope this helps you!
Over the last 50-100 years, the population of most penguin species has declined close to _____%.
A) 50
B) 75
C) 80
D) 90
Answer:
B
Explanation:
I learned this in school
Over the last 50-100 years, the population of most penguin species has declined close to 75%.
Why population of the penguin is declined?Researchers examining chinstrap penguins in the Antarctic have discovered significant population declines in many colonies, with some dropping by as much as 75% since the last survey nearly 50 years ago.
Thus, option B, 75% of the penguin's population has declined.
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Explain how overfishing is an example of the tragedy of the commons.
Overfishing is an example of the "tragedy of the commons," where multiple parties tend to overuse a centralized repository, depleting it.
What is overfishing?Overfishing is a classic case of the tragedies of the legislature because as fishing equipment advances and demand rises in response to overpopulation, someday fishing will outpace fish reproduction in the area.
Overfishing occurs when an excessive amount of fish are caught all at once, depleting the breeding stock beyond its ability to recover. Overfishing frequently coexists with inefficient commercial fishing practices that bring in enormous quantities of undesired fish and other animals that are later abandoned.
It can alter the proportion of fish that remain, their reproductive habits, and how quickly they grow.
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Why would a government put a restriction on the number of goods that can be imported into their country?
Answer:
Governments restrict imports for four basic reasons: For some governments, particularly in the developing world, tariffs provide a significant source of government revenues
More than 1.5 billion people around the world don't have electricity. That is about 25% of the world's population and almost 80% of
people in the developing world. The Portable Light Project is working to bring cheap, affordable energy to billions of people without
power. This inexpensive, portable resource includes LED's, a rechargeable battery source and utilizes
wind power.
solar energy
C
nuclear power.
D)
mechanical energy.
Answer:
Solar energy
Explanation:
The project provides material kits valued at $16, including a flexible reflective panel, a rechargeable battery, a USB port and a high brightness LED. The source of energy for this devise is solar energy, available everywhere on Earth.
This inexpensive, portable resource includes LED's, a rechargeable battery source and utilizes solar energy.
What is solar energy?Solar energy is the radiant heat and light that the Sun emits, and it is captured using a variety of technologies, including solar thermal energy, solar power, and solar architecture.
It is a crucial source of renewable energy, and depending on how solar energy is captured, distributed, or transformed into solar power, its technologies are often classified as passive solar or active solar.
Using photovoltaic systems, concentrated solar electricity, and solar water heating are examples of active solar approaches.
A building's orientation toward the Sun, the use of materials with favorable thermal mass or light-dispersing qualities, and the creation of naturally ventilated rooms are all examples of passive solar approaches.
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What are the effects of the elliptical shape of the earth
Answer:
Rather, the elliptical orbit affects the length of the seasons, which — along with other orbital effects — triggers the ice ages. Currently, in the northern hemisphere, summers are longer than winters, because of Kepler's orbit laws and the fact that perihelion is in the northern hemisphere winter.
When the Earth's orbit is more elliptical, the planet spends more time farther away from the sun, and the Earth gets less sunlight over the course of the year. These periods of more-elliptical orbits are separated by about 100,000 years.
What is the cause of the elliptical shape of Earth?The Earth is clearly at some levels hotter at aphelion in July. The reason for this is that the southern hemisphere is especially the ocean. Water retains warmth an awful lot higher than land and retains heat within the southern wintry weather months. Perihelion is getting later via about a day every 70 years due to precession.
What effect does the elliptical shape have on the speed of the orbiting object?Satellite tv for pc orbiting in elliptical movement will accelerate as its top (or distance from the earth) is decreasing and slow down as its peak (or distance from the earth) is increasing.
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.All of the following are true about the Arab Empire EXCEPT—
they tolerated monotheistic religions as long as people paid a tax.
it was easily conquered because Islam is nonviolent.
its first leader was Muhammad.
people joined it after seeing its strong fighting force in action.
Answer:
Except they tolerated monotheistic religions as long as people paid a tax.
Explanation:
The three major monotheistic religions, Judaism, Christianity, and Islam originated in what is known today as the Arab world and are still predominant with rare expetions of minority groups who are very often subjected to abuse and suppression of human rights, especially right to religion.
The Arab World, most particularly countries under current Arab empire had in pre-Islam period tradition of polytheistic religions.
What provides the power to change igneous, sedimentary, and metamorphic rocks into sediment?
Increased algae growth is the final stage of eutrophication of a body of water.
True or
False
Increased algae will not result in the growth of the final stage of eutrophication of a body of water. However, the statement is false.
What is algae?It is an informal term that is used for a large and diverse group of photosynthetic eukaryotic organisms. It includes species from multiple distinct clades and is a polyphyletic grouping.
When the algae eventually die and bacteria decompose them, both the dead plants and the dead algae further use up the oxygen in the pond or lake. This will result in the decomposition of the dead plants and algae.
Therefore, the given statement is false.
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what causes a volcanic eruption
Answer:
Volcano eruptions happen when magma erupts from beneath the Earth's crust.
Explanation:
When a volcano erupts, the magma becomes lava and shoots into the air, eventually running down the side of the volcano.