Across
- 2. The release of waste and harmful substances in the water bodies is known as water …………………….
- 5. Air pollution is caused by harmful substances known as air ...........
- 8. During ……………………, living things produce carbon dioxide which is release in the air.
- 9. Plants take in ………….. …………………. from the air during photosynthesis.
- 10. Oil and …………………. Are examples of fossil fuels
Down
- 1. The process by which plant manufacture its food is known as ……………… .
- 3. ……………………… is the result of excessive use of fertilizers in field
- 4. Complete the equation below
- 6. Increase in Earth’s temperature is known as …………………. warming.
- 7. Sulfur dioxide reacts with droplets of water in clouds to form ……………… rain