Carbon Dioxide is a Greenhouse Gas Flashcards
1
Q
What is the temp of the Earth a balance between?
A
The heat it gets from the Sun and the heat it radiates back out into space
2
Q
What do gases in the atmos like CO2, methane and water vapour naturally act as?
A
An insulating layer - greenhouse gases
3
Q
What do greenhouse gases do?
A
Absorb most of the heat that would normally be radiated back out into space, and re-radiate it in all directions - including back to earth
4
Q
What are some examples of human activity affecting CO2 levels?
A
Deforestation
Burning fossil fuels
5
Q
Why has the conc of CO2 in the atmos been increasing?
A
Human activity to has happened over the last 200 years or so
