Earth's Changing Climate Review

Although there are many ___________, there is a ________ toward increasing temperatures and decreasing ice on Earth since about 1880.

• fluctuations, trend

• trends, fluctuation

 During the Eocene period more energy entered than exited the Earth system. What could have caused this?

• Carbon dioxide increased, leading to more energy absorbed by Earth’s surface.

• Carbon dioxide increased, leading to less energy absorbed by Earth’s surface.

• Carbon dioxide decreased, leading to more energy absorbed by Earth’s surface.

• Carbon dioxide decreased, leading to less energy absorbed by Earth’s surface.

When carbon dioxide in the atmosphere increases, the amount of energy absorbed by Earth’s surface should…

• Decrease

• Increase

• Change unpredictably

• Stay at a constant level

Which changes will INCREASE the energy in a system?

• When MORE energy ENTERS than exits

• When LESS energy ENTERS than exits

• When MORE energy EXITS than enters

• When LESS energy EXITS than enters

Which of the following explanations best shows the role of carbon dioxide in the atmosphere?

• Carbon dioxide does not interact with the energy entering or exiting the atmosphere.

• Carbon dioxide reflects the exiting energy back to Earth and traps it into the atmosphere.

• Carbon dioxide absorbs the energy that is reemitted by Earth and redirects it back to Earth making Earth warmer.

• Carbon dioxide absorbs the energy that is reemitted by Earth. Carbon dioxide traps this energy, keeping Earth cooler.

Sophia wants to do an experiment in order to analyze what is in the atmosphere. What do you think she will find?

• The atmosphere is made up of one type of gas.

• The atmosphere is made up of different kinds of gasses and each forms their own layer.

• The atmosphere is made up of different kinds of gasses and they are evenly spread out throughout the atmosphere.

• The atmosphere is not made of anything.

What is one cause for the rise in carbon dioxide in the atmosphere today?

• Riding your bike instead of using a car.

• Using solar panels as our primary source of energy.

• There are more people doing things that use combustion.

• Volcanoes have erupted in a very short period of time to cause carbon dioxide to increase.

True or False? Energy is always entering the Earth system as light from the sun.

• True

• False

Which gasses have a WARMING EFFECT on Earth’s global temperature?

• Carbon dioxide and Nitrogen dioxide

• Carbon Dioxide and sulfur dioxide

• Carbon Dioxide and Methane

• Methane and Sulfur dioxide

What is this graph showing?

• The graph shows a trend of increasing arctic sea ice over time.

• The graph shows the arctic sea ice going up and down (fluctuating), with no trend.

• The graph shows a trend of decreasing arctic sea ice over time.

• The graph shows that the amount of sea ice has stayed constant over time.