Greenhouse Gases, Global Warming and Climate Change Flashcards
1
Q
3 examples of greenhouse gases:
A
- carbon dioxide
- methane
- water vapour
2
Q
How does the greenhouse effect work?
A
- visible light with a short wavelength is absorbed by the Earth
- then, it is re-radiated as longer wavelength infra red
3
Q
What is the enhanced greenhouse effect?
A
The greenhouse effect but the longer wavelength infra red cannot penetrate through the greenhouse gas layer in the atmosphere.
4
Q
Two human activities that increase the amount of greenhouse gas carbon dioxide:
A
- burning fossil fuels
- deforestation
5
Q
Two human activities that increase the amount of greenhouse gas methane:
A
- farming of livestock
- landfills
6
Q
Potential effects of climate change:
A
Rising sea levels = flooding
Droughts
Ice caps melting
Desertification
7
Q
What is carbon footprint?
A
The total amount of greenhouse gases emitted over a full life cycle of the product, service or event.
