The Carbon Cycle Flashcards
What is the carbon cycle?
The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, oceans, and living organisms.
True or False: Carbon is only found in living organisms.
False
Fill in the blank: The process of plants converting carbon dioxide into glucose is known as ______.
photosynthesis
What gas do animals exhale that contributes to the carbon cycle?
Carbon dioxide
Multiple Choice: Which of the following is a major reservoir of carbon? A) Atmosphere B) Oceans C) Soil D) All of the above
D) All of the above
What role do decomposers play in the carbon cycle?
Decomposers break down dead organic matter, releasing carbon back into the atmosphere and soil.
True or False: Fossil fuels are formed from ancient organic matter and are a significant source of carbon dioxide when burned.
True
What is the primary process by which carbon is removed from the atmosphere?
Photosynthesis
Fill in the blank: The burning of fossil fuels contributes to increased levels of ______ in the atmosphere.
carbon dioxide
Multiple Choice: Which human activity is a major contributor to the increase of carbon dioxide in the atmosphere? A) Deforestation B) Solar energy C) Wind energy D) Recycling
A) Deforestation
What is respiration’s role in the carbon cycle?
Respiration releases carbon dioxide back into the atmosphere from living organisms.
Multiple Choice: Which of the following processes contributes to the carbon cycle? A) Photosynthesis B) Respiration C) Decomposition D) All of the above
D) All of the above
What is the significance of the carbon cycle for climate regulation?
The carbon cycle regulates Earth’s temperature by controlling the levels of carbon dioxide in the atmosphere.
True or False: All carbon in the atmosphere comes from human activities.
False
Fill in the blank: The burning of forests releases large amounts of ______ into the atmosphere.
carbon dioxide
What is the impact of increased carbon dioxide on global warming?
Increased carbon dioxide contributes to the greenhouse effect, leading to global warming.
Multiple Choice: Which process is NOT part of the carbon cycle? A) Photosynthesis B) Combustion C) Erosion D) Respiration
C) Erosion
What is the effect of deforestation on the carbon cycle?
Deforestation reduces the number of trees available to absorb carbon dioxide, increasing atmospheric levels.
True or False: Carbon is essential for all living organisms.
True
Fill in the blank: The cycle that describes the movement of carbon through different forms in the environment is called the ______.
carbon cycle
What happens to carbon in the soil over time?
Carbon can be stored in the soil as organic matter, contributing to soil health.
Multiple Choice: Which of the following is a natural process that releases carbon dioxide? A) Volcanic eruptions B) Industrial emissions C) Urban development D) None of the above
A) Volcanic eruptions
