What is the carbon cycle?
2.3 Carbon Cycle and Climate Change Review

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Science
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7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.
2.
FLASHCARD QUESTION
Front
What are the main sources of carbon emissions?
Back
The main sources of carbon emissions include burning fossil fuels (like coal, oil, and natural gas), deforestation, and certain agricultural practices.
3.
FLASHCARD QUESTION
Front
How does deforestation contribute to climate change?
Back
Deforestation reduces the number of trees that can absorb carbon dioxide, leading to higher levels of CO2 in the atmosphere, which contributes to global warming.
4.
FLASHCARD QUESTION
Front
What role do oceans play in the carbon cycle?
Back
Oceans absorb a significant amount of carbon dioxide from the atmosphere, acting as a carbon sink. They also release CO2 back into the atmosphere.
5.
FLASHCARD QUESTION
Front
What is the greenhouse effect?
Back
The greenhouse effect is the warming of Earth's surface due to the trapping of heat by greenhouse gases like carbon dioxide, methane, and water vapor in the atmosphere.
6.
FLASHCARD QUESTION
Front
What is the relationship between carbon dioxide levels and global temperatures?
Back
Higher levels of carbon dioxide in the atmosphere are closely related to increases in global temperatures, as CO2 traps heat.
7.
FLASHCARD QUESTION
Front
What is photosynthesis?
Back
Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen, effectively removing CO2 from the atmosphere.
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