Complete the following statements. Choose your answer in the word pool below.
1. _____ keeps us warm on planet Earth.
2. _____ results of excessive greenhouse gases.
3. The source of greenhouse gases are _____, _____, _____ and _____.
4. _____ is the greatest Greenhouse gas emission.
5. _____ is the least Greenhouse gas emission.
6. Global warming is the continuing increase in the earth's overall _____.
7. _____ is one of the greatest of all threats to the environmental, biodiversity and human life.

Global warming
Energy
Industrial
Temperature
Climate change
Greenhouse effects
Wastes
Agriculture​