Global Warming

Question 1

What is global warming

Answer 1

The name given to the process where the average temperature of the earth is rising

Question 2

Greenhouse effect

Answer 2

Gases such as carbon dioxide behave like a blanket around the earth. These gases allow the Suns Ray’s through but stop the heat from escaping back into space.

Question 3

Two natural climatic cycles

Answer 3

Earths orbit

Sunspots

Question 4

How does the earths orbit lead to climate change

Answer 4

Sometimes it goes round in a circle. At other times the path it takes is more like an oval, taking the earth further from the sun at certain times of the year.
Oval cools down
Circle heats up

Question 5

Sunspots

Answer 5

Tiny patches on the sun.

Surrounded by brighter areas and more energy from the sun, so the earth could get warmer.

Question 6

Volcanic activity

Answer 6

When they erupt they send large amounts of sulphate gas,ash, dust into the atmosphere
Mix with water vapour in the air to produce sulphur acid
Reflects Suns energy into space
Global cooling

Question 7

Human causes

Answer 7

Burn fossil fuels
Adds to greenhouse effect
Carbon dioxide

Question 8

Motor vehicle pollutants

Answer 8

Burn oil
Carbon dioxide into atmosphere
Greenhouse effect