4.3 study guide

Question 1

what are greenhouse gases

Answer 1

gases that absorb infrared radiation. They also must contribute to the greenhouse effect

Question 2

Describe the greenhouse effect

Answer 2

1. suns radiation comes to earth 2. half is reflected or absorbed by clouds and atmosphere
2. the rest comes to earth and is absorbed by oceans and land
3. the earth releases heat back to space
4. some heat passes directly through atmosphere
5. but most is captured by greenhouse gases.

Question 3

What do ice cores tell us about the patterns of CO2 and temperature for the past 800,000 years

Answer 3

when Co2 increases so does the temperature and vice versa.

Question 4

positive feedback

Answer 4

ex: CO2 is added to the atmosphere to start with, the last outcome is more CO2 being added; positive