4.2 Natural causes of climate change

What is the approximate time period for one complete axial tilt change?

• 26,000 years

• 41,000 years

• 100,000 years

• I don't know yet

Which of the following refers to changes in the shape of Earth's orbit?

• Eccentricity

• Axial Tilt

• Precession

• I don't know yet

Solar activity affects Earth's climate through which of the following?

• Increasing the Earth's orbit size

• Altering the number of sunspots and solar flares

• Causing volcanic eruptions

• I don't know yet

What is one short-term impact of volcanic activity on climate?

• Increase in sea levels

• Block out the Sun, reducing temperatures

• Causing the greenhouse effect

• I don't know yet

Over how many years does Earth's axial precession (wobbling) complete a cycle?

• 41,000 years

• 26,000 years

• 100,000 years

• I don't know yet

Which natural cause of climate change can have a longer-term cooling effect due to the release of sulphur dioxide?

• Orbital changes

• Solar flares

• Volcanic activity

• I don't know yet

What effect does sulphur dioxide have when released into the atmosphere during a volcanic eruption?

• It warms the atmosphere

• It reflects solar radiation, cooling the Earth

• It increases greenhouse gases

• I don't know yet

Which cycle is responsible for the 'wobble' in Earth's axis?

• Eccentricity

• Axial Tilt

• Precession

• I don't know yet

The axial tilt of the Earth is responsible for:

• The shape of Earth's orbit

• The timing of the seasons

• The contrast between seasons

• I don't know yet

Earth's precession (or wobble) affects the climate by:

• Changing the distance to the Sun

• Altering the timing of the seasons relative to Earth's orbital position

• Modifying the shape of Earth's orbit

• I don't know yet