The carbon cycle is the movement of carbon on Earth by the processes of --- and ---.

Oxygen is a gas produced by --- and used by ---.

Carbon dioxide is a gas produced by --- and used by ---.

Respiration is the process by which animals use --- and make ---.

Photosynthesis is the process by which --- make ---.

Plants require ---, ---, and --- for photosynthesis.

People and animals exhale --- during ---.

Planting large numbers of trees results in ---.

If there is a fire in the forest, there will be less --- in the environment.

What waste product released during the carbon dioxide-oxygen cycle is necessary for the survival of animals?

Teachers: Create FREE classroom games with your questions Click for more info!
©2007-2024 Review Game Zone | About | Privacy | Contact | Terms | Site Map