Carbon Cycle Flashcard 2025

Front

Which of the following processes is an example of carbon sink? Options: photosynthesis, respiration, decomposition, none of the above

Back

photosynthesis

Front

A process that absorbs or removes more carbon dioxide from the atmosphere than it releases

Back

Carbon Sink

Front

Which of the following are involved in the carbon cycle?

Back

all of the above

Front

Carbon dioxide is used in natural processes within which of the following carbon reservoirs? terrestrial plants, the atmosphere, hydrosphere, all of the above

Back

all of the above

Front

Which of the following IS NOT a carbon source? Options: respiration by organisms, decomposition of land plants by fungi and bacteria, burning of fossil fuels by factories, photosynthesis by phytoplankton

Back

photosynthesis by phytoplankton

Front

Burning fossil fuels directly INCREASES the CO2 in the

Back

atmosphere

Front

Carbon Dioxide levels in our atmosphere are

Back

At an all time high in Earth's history

Front

Which process REMOVES carbon from the atmosphere? Options: Combustion, Respiration, Photosynthesis, Decomposition

Back

Photosynthesis

Front

If the plant population DECREASES, the amount of carbon in the atmosphere would _________.

Back

Increase

Front

Which of the following would DECREASE the amount of carbon dioxide in the atmosphere? Options: Having too many farm animals, Burning Fossil Fuels, Planting new trees, Driving cars

Back

Planting new trees