Carbon Cycle Review: Standard

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms, continuously recycling carbon in various forms.

Front

True or False: All of the carbon in existence is continually recycled in the carbon cycle.

Back

True

Front

True or False: Carbon exists in many forms on Earth.

Back

True

Front

What happens during decomposition in the carbon cycle?

Back

During decomposition, animals and plants break down organic matter, releasing carbon dioxide back into the atmosphere.

Front

How do animals contribute to the carbon cycle?

Back

Animals contribute to the carbon cycle by breaking down organic molecules and releasing carbon dioxide during respiration.

Front

What is combustion in the context of the carbon cycle?

Back

Combustion is the process of burning organic materials, which releases carbon dioxide into the atmosphere.

Front

How is combustion similar to cellular respiration?

Back

Both processes increase the amount of carbon dioxide in the environment.

Front

What are ice cores and how do they relate to the carbon cycle?

Back

Ice cores are cylindrical samples from ice sheets that contain trapped air bubbles, allowing scientists to study past atmospheric carbon dioxide levels.

Front

What can tree rings tell us about the carbon cycle?

Back

Tree rings can provide information about historical climate conditions and carbon dioxide levels, as the width of the rings reflects growth influenced by carbon availability.

Front

What role do oceans play in the carbon cycle?

Back

Oceans absorb carbon dioxide from the atmosphere and store it, playing a crucial role in regulating global carbon levels.