Across
- 2. got reflected from the earth's surface by the sun
- 5. a way to reduce CO2 by plants
- 7. radiation from sun to the earth's surface
- 8. natural source of CO2
- 9. what animal that can produce methane gas
- 10. factor that make ricefields produce methane gas
Down
- 1. adverse effect from particulates
- 3. greatest substance in air
- 4. a way to reduce CH4
- 6. CH4