Cycles

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

in the carbon cycle what happens when organisms die?

bacteria converts ______ to ammonium compounds.

most organisms take it in for respiration

How do animals help in the carbon cycle?

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

Combustion takes place in which cycle?

in the nitrogen cycle what is found in the soil?

protein is essential in this cylce?

oxygen is given off during the day in which cycle ?

how do plants help in the nitrogen cycle?

When water evaporates it is part of which cycle?

the nitrogen cycle faeces produces________.