Through what process do ALL living things add carbon to the atmosphere; eating plants, or decay?

What is the movement of carbon dioxide and oxygen on Earth by the processes of respiration and photosynthesis?

What do animals breathe out that plants absorb?

What are the products of cellular respiration?

What gas is produced by plants during photosynthesis that animals use for respiration?

What is the process where plants use sunlight, water, and carbon dioxide to produce sugar and release oxygen?

What is the process that combines water, carbon dioxide, and light to make sugar?

What is the process by which animals use oxygen and food to make energy and carbon dioxide?

A large number of plants and trees were destroyed by a forest fire. What will happen in the area; oxygen will increase or decrease??

When running, a person takes deep breaths in order to get which gas from the air?

The energy that animals need for their life functions is released when their cells...; break down carbon-based molecules, or, absorb water from the environment?

A large number of trees in the rainforest are cut down. What effect could this have on the carbon dioxide-oxygen cycle if the removal of so many plants and trees continues; carbon dioxide will increase or water vapor will increase?