What is the equation for photosynthesis

What is the name of the layer that protects life from harmful UV rays?

Decomposers remove carbon from the environment

Respiration is a chemical reaction that produces energy

What affect did the formation of oceans have on the concentration of carbon dioxide in the Earth's atmosphere

Only animals can respire

Only plants photosythesise

This process results from human activity and releases carbon dioxide to the atmosphere

This sphere contains water

This process removes carbon dioxide from the atmosphere

What gas is the carbon cycle based on?

Plants, algae and some bacteria are known as