Climate Change

Climate change is defined as a change in the average temperature over a period of at least

• 300 years

• 300,000 years

• 3 decades

• 3 millions years

Global warming can be misleading because

• There is no proof that it is actually happening.

• All areas of the Earth are not getting warmer every year.

• It isn't Carbon Dioxide that is causing the temperature increase.

• It isn't the greenhouse gases that are causing the heat to be trapped.

What are the main greenhouse gases?

• carbon dioxide, oxygen, water vapor, nitrous oxide, methane

• carbon dioxide, methane, nitrous oxide, water vapor, sulfur dioxide

• methane, water vapor, carbon dioxide, oxygen

• methane, water vapor, carbon dioxide, nitrous oxide

The oceans take in carbon from the atmosphere and over time it

• will become stored deep in sediments building reservoirs of carbon

• will all get taken in by phytoplankton and destroy the aquatic food chains

• will settle at the top of the ocean

• will form water vapor

Choose which answer(s) are possible effects of rapid atmosphere warming:

• Increased hurricanes and typhoons

• Increased diseases

• Disastrous forest fires

• Starvation of the poorest populations

What is the main reason sea levels are rising rapidly?

• melting sea ice

• increase of water vapor in atmosphere

• melting land ice

• increase in floods

What are the biggest source(s) of atmospheric methane?

• deforestation

• burning fossil fuels

• melting permafrost

• livestock

Gases in the Earth's troposphere retaining the infrared radiation and warming the Earth is referred to as:

• Climate Change

• Permafrost Melt

• Ozone Depletion

• Greenhouse Effect

Where does most nitrous oxide emissions come from?

• fertilizers

• permafrost

• livestock

• vehicles

What is the function of the Ozone Layer?

• It protects the surface of the Earth from the ultraviolet radiation

• It protects the Earth's surface from the infrared radiation

• It decreases greenhouse emissions

• It builds reservoirs of carbon