Cycles

photosynthesis is the only process by which carbon dioxide can enter the living world. in which cycle do we find this happening?

most organisms take it in for respiration

in the nitrogen cycle what is found in the soil?

oxygen is given off during the day in which cycle ?

in the carbon cycle what happens when organisms die?

protein is essential in this cylce?

How do animals help in the carbon cycle?

how do plants help in the nitrogen cycle?

When water evaporates it is part of which cycle?

bacteria converts ______ to ammonium compounds.

Combustion takes place in which cycle?

Which of the cycles need carbon dioxide to have its process taking place?

the nitrogen cycle faeces produces________.