Draw a rough sketch of the
carbon, nitrogen, sulphur, phosphorus and potassium cycles.
The conversion of glucose
and oxygen to water and carbon dioxide is called _________.
The nitrogen cycle
Photosynthesis
The phosphorus cycle
Respiration
The carbon cycle
Why is carbon considered to
be the building block of life?
Nitrates produced through
the process of nitrification can be a problem for the water
supply. Why?
What is nitrogen fixation?
What is ammonium (NH4+)
fixation?
Why do plants require
phosphorus?
Why do plants require
potassium?
How does sulphur enter the
atmosphere?
Distinguish between
mineralization and immobilization.
