Energy and the Environment

In general, what happens to the climate (of the Earth) if more greenhouse gases are released (through human activities and natural occurrences) into the atmosphere?

• Average temperature goes up

• Average temperature goes down

• Average temperature remains the same

• None of the above

Which of the following is NOT an effect of Global Warming?

• Polar ice caps will melt.
• Coastal regions will be covered with rising sea levels.
• Some areas will experience serious droughts
• The Earth's rotation will slow down and eventually stop

The graph below shows  $CO_2$ emissions and temperatures from 1909 to 1949. What conclusion is best supported by the graph?

• There is no relationship between carbon dioxide concentrations and temperatures

• As carbon dioxide concentrations increase, temperatures increase

• As carbon dioxide concentrations increase, temperatures decrease

• As carbon dioxide concentrations decrease, temperatures increase

What is the mixture of gases surrounding the Earth called?

• carbon
• concentration
• atmosphere
• emissions

The main human activity that releases greenhouse gases is

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

Tags

NGSS.MS-ESS3-5

The greenhouse gas having the greatest role in human-caused global warming is

• methane
• carbon dioxide
• CFCs (chlorofluorocarbons)
• ozone

Without the Greenhouse Effect the Earth would be...

• too warm for life

• too cold for life

True or False: All of the radiation from the Sun is absorbed by the Earth

• True
• False

The Greenhouse Effect: Put these statements in the correct order:

1) so it emits infrared back towards space.

2) This then heats up the greenhouse gases in the atmosphere

3) Infrared radiation from the Sun heats the surface of the Earth.

4) which reradiates the infrared back towards the Earth.

5) This warms the surface of the Earth

• 5, 4, 3, 2, 1

• 1, 2, 3, 4, 5

• 3, 5, 1, 2, 4

• 2.1., 4, 3, 5

Why does the Earth heat up?

• This happens when the amount of radiation emitted by the Earth is greater than the amount it absorbed.

• This happens when the amount of radiation absorbed by the Earth is greater than the amount it emits.

• This happens because the Sun gets bigger and emits more infrared radiation.