d) Abundance of desert plants
When the carbon dioxide is increasing it increases the earth temperature. The increase in carbon dioxide causes global warming. Global warming is defined as a gradual increase in the earth’s temperature generally due to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants
These three are the activities which promotes the release of carbon dioxide in air.
- Burning of fossil fuels such as petrol, diesel uses transportation and industrial purposes.
- Burning of wood and charcoal for heating and cooking.
- Cutting of trees /deforestation.