IB Geography Causes of Climate Change

Why is the increase of Greenhouse gasses a big issue?

• It causes climate change and increase in the global temerature 
• It can lead to a major increase in Greenhouses 
• It leads to more factories
• It causes a major decrease in people

 What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

Which one of the choices below is NOT a  cause for global warming?

• Having too many farm animals
• Burning Fossil Fuels
• Planting new trees

What do humans do that releases greenhouse gases into the atmosphere?

• Burn fossil fuels (like gas and coal)
• Build cement buildings
• Ride bikes and use solar energy
• Compete in the Olympics

Which of the following is the best conclusion that can be made from this graph?

• atmospheric carbon dioxide levels have been decreasing since 1960
• Hawaii has a lot of carbon dioxide
• humans have been working hard to decrease carbon dioxide levels
• atmospheric carbon dioxide levels have increased steadily since 1960

Which of the following natural events would be most likely to contribute to the cooling of Earth's atmosphere?

• Earthquake
• Hurricane
• Volcanism
• Monsoon

The greenhouse effect is beneficial as it helps to sustain life on earth by naturally trapping heat in the atmosphere. 

• False
• True

If Earth did not have an atmosphere, most of the energy from the sun would 

• be reflected back into space.
• be absorbed by Earth’s oceans.
• be absorbed by Earth’s landmasses.
• never reach Earth’s surface.

Gases such as water vapor and carbon dioxide that trap heat near Earth are known as 

• global gases.
• greenhouse gases.
• proxy gases.
• offset gases.

How do volcanic eruptions affect climate?

• Eruptions form clouds that drop large amounts of precipitation.

• Gases and particles may block sunlight and lower temperatures.

• Vibrations caused by eruptions shift ocean currents, which in turn affect weather.

• They cause a long-term increase in temperature.