Natural causes of climate change

Sunspots cycles are how many years?

• 9

• 10

• 11

• 12

Sunspots are explosions on the Sun's surface

• True

• False

Volcanoes can cause global climate change.

• True

• False

Ash clouds from eruptions cause what type of winter?

(a)  

Sulphur dioxide from eruptions is converted to what in the atmosphere?

(a)  

Suplhuric acid increases the earths....

• albdeo effect

• milankovitch effect

• sunspots

• greenhouse gases

How many years worth of climate history can be recovered from ice cores?

• 8000

• 80 0000

• 800 000

• 8000 0000

The earth's climate has naturally fluctuated.

• True

• False

How old is planet Earth?

• 3.6 billion

• 1 billion

• 8 billion

• 4.6 billion

Which word describes the change in the shape of the Earth's orbit?

• Eccentricity

• Axial tilt

• Precession