carbon cycle Flashcards
What is the carbon cycle?
The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, water, and living organisms.
True or False: Photosynthesis is a process that removes carbon dioxide from the atmosphere.
True
Fill in the blank: Carbon dioxide is absorbed by __________ during photosynthesis.
plants
What are the main processes involved in the carbon cycle?
Photosynthesis, respiration, decomposition, and combustion.
Which organism is primarily responsible for photosynthesis?
Plants
What gas do animals release during respiration?
Carbon dioxide
Multiple Choice: Which of the following processes returns carbon to the atmosphere? A) Photosynthesis B) Respiration C) Sedimentation D) Evaporation
B) Respiration
What role do decomposers play in the carbon cycle?
Decomposers break down dead organic matter, releasing carbon back into the soil and atmosphere.
True or False: Combustion of fossil fuels increases the amount of carbon dioxide in the atmosphere.
True
Fill in the blank: The burning of __________ releases carbon into the atmosphere.
fossil fuels
What is one human activity that disrupts the carbon cycle?
Burning fossil fuels.
What is carbon sequestration?
Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide.
Fill in the blank: During respiration, __________ is converted back into carbon dioxide.
glucose
What are fossil fuels made from?
Fossil fuels are made from the remains of ancient plants and animals.
whats combustion
When fossil fuels (such as coal, oil, and natural gas) are burned for energy, the stored carbon is released back into the atmosphere as carbon dioxid
whats fossil fuels
such as coal, oil, and natural gas) are burned for energy, the stored carbon is released back into the atmosphere as carbon dioxide
how does the carbon cycle g
In the carbon cycle, plants absorb carbon dioxide during photosynthesis, storing it as glucose. Animals then eat plants, transferring the carbon. Both plants and animals release carbon dioxide back into the atmosphere through respiration. Decomposers break down dead organisms, releasing more carbon. Fossil fuels form from some of this carbon and, when burned, release carbon dioxide.
