Overview
Describe how carbon circulates in nature. Draw the carbon cycle in detail. State why the carbon cycle is necessary for life. Recognise the delicate balance between carbon and oxygen. Describe the part played by plants and animals in the water cycle. Draw the water cycle in detail. Describe with the aid of diagram the role of nitrogen. State that energy can be obtained by a decomposing organic substance Identify one of the gasses produced during decay.
What you'll learn
- Carbon and Oxygen Cycles:
- (a) The Carbon Cycle
- (i) Definition.
- (ii) The process of carbon cycling.
- (iii) The importance of carbon cycle for life.
- (b) The Oxygen Cycle
- (i) The process of oxygen cycling.
- (ii) The importance of oxygen to living org
- The Water Cycle:
- (i) The process of water cycling
- (ii) Importance of water to living organisms.
- The Nitrogen Cycle:
- (i) Importance of nitrogen to plants and animals.
- (ii) The process of nitrogen. cycling
- Decomposition in Nature:
- (i) Micro and macro decomposers
- (ii) Role of decomposers.