Greenhouse Gases Flashcards Preview

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Flashcards in Greenhouse Gases Deck (18):
1

2 examples of greenhouse gases

Carbon dioxide
Methane
Water vapour

2

What do greenhouse gases act as

An insulating layer in the earths atmosphere - warming up the earth

3

What can heat not do

Escape from earth once it gets in

4

What's the suns energy in the form of

Electromagnetic radiation
UV visible infrared Wavelengths

5

What does the suns radiation do when it reaches the earth

Heats surface up providing warmth

6

What's the energy the earth gives out like

Not as hot as the suns

7

What type of radiation does the earth give out

Lower energy infrared radiation

8

Why can't heat escape from the earth

The greenhouse gases absorb the heat when it tries to escape

9

What does it cause when the greenhouse gases absorb the heat energy

Global warming

10

What would happen if we had no carbon dioxide in the atmosphere (3)

The earths temperature would be approximately -19 degrees
All water would be solid ice
Life would not have a chance to evolve

11

2 human activities increasing the carbon dioxide levels

Deforestation . Less trees means more carbon dioxide
Burning fossil fuels

12

2 human activities that are increasing methane levels

Increasing farming. Manure

Landfill sites. Produces methane when decomposes

13

What's peer reviewing

When scientists publish their research in scientific journals to be checked by other scientists and the public to ensure its scientifically valid

14

What do many scientists believe based on peer reviewing evidence

That human activities will cause the temperature of the earth to increase causing climate change

15

What has led to speculation

Because it's very hard to fully understand the earths climate as it's so complex

16

What's the speculation in the media

That stories may be biased or only some of the information given

17

When looking at sources what should you take into consideration

When and who wrote it

18

What do tree rings show

How the planet has cooled