Environment - Carbon Cycle
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What are organic molecules?
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Molecules that contain carbon
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About This Quiz
Explore the dynamics of the carbon cycle. Understand organic molecules, carbon acquisition in animals, and the roles of decomposition and combustion in carbon cycling.
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- 2.
How do animals get carbon?
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By eating plants
Correct Answer
A. By eating plantsExplanation
Animals obtain carbon by consuming plants. Plants are the primary producers in the food chain and they undergo photosynthesis, converting sunlight, water, and carbon dioxide into glucose and oxygen. Animals then consume these plants, either directly or indirectly, to obtain the carbon they need for energy and growth. This process allows carbon to flow through the ecosystem, with plants acting as a source of carbon for animals.Rate this question:
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- 3.
In what process is carbon returned to the environment?
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Respiration
Correct Answer
A. RespirationExplanation
Respiration is the process in which organisms, including plants and animals, release carbon dioxide back into the environment. During respiration, living organisms take in oxygen and break down glucose molecules to produce energy, water, and carbon dioxide. This carbon dioxide is then released into the atmosphere, where it can be taken up by plants during photosynthesis. Respiration plays a crucial role in the carbon cycle, ensuring that carbon is continuously cycled between living organisms and the environment.Rate this question:
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- 4.
What happens during decomposition?
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Substances get broken down into simpiler molecular substances
Correct Answer
A. Substances get broken down into simpiler molecular substancesExplanation
During decomposition, substances undergo a chemical reaction where they are broken down into simpler molecular substances. This process involves the breaking of chemical bonds within the original substance, resulting in the formation of new compounds or elements. Decomposition reactions can be caused by various factors such as heat, light, or the presence of catalysts. This process is essential in nature as it helps in the recycling of nutrients and the breakdown of organic matter.Rate this question:
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- 5.
What happens during combustion?
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Substances get burned
Correct Answer
A. Substances get burnedExplanation
During combustion, substances undergo a chemical reaction in the presence of oxygen, resulting in the release of heat and light. This process is commonly known as burning. The substances involved in combustion are typically oxidized, breaking down into simpler molecules or elements. This reaction releases energy in the form of heat and often produces flames. Combustion is a fundamental process in many natural and human activities, such as burning fossil fuels for energy production or the metabolism of food in living organisms.Rate this question:
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Current Version
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Mar 21, 2022Quiz Edited by
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Oct 23, 2007Quiz Created by
Studycourt143
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