SCIENCE: IMPACT OF HUMANS, UNIT TEST:
WHAT HAPPENS TO INFRARED RADIATION RELEASED BY THE EARTH IF THERE IS AN INCREASED LEVEL OF CARBON DIOXIDE I THE ATMOSPHERE?
1. IT IS CONVERTED TO SOLAR ENERGY.
2. IT ESCAPES AND COOLS THE ATMOSPHERE.
3. IT IS CONVERTED TO CARBON DIOXIDE.
4. IT IS ABSORBED AND HEALS THE ATMOSPHERE.