Lesson #3: The Carbon Cycle

Plants and animals are the only reservoirs in the carbon cycle.

Photosynthesis is a process performed by plants, which converts carbon dioxide

into _____________

which the plant can use for structure.

Air is a reservoir for carbon. It holds the carbon-containing molecule __________.

Photosynthesis, decomposition, and combustion are all processes that occur in the carbon cycle.

Decomposition occurs when small molecules come together to make larger

molecules.

One of the ways in which animals can return carbon back to the atmosphere is through a process called (respiration / combustion), or what we humans refer to as breathing.

Which of the following might cause erosion?

In photosynthesis, carbon is converted from carbon dioxide into

Nitrogen fixation is performed

Oceans are considered the largest _________ in the water cycle.