Practice for ECC CJ

What has been happening to the temperature on Earth over the last 150 years?

• Increasing

• Decreasing

• Staying the Same

• Not consistent enough to tell

What is happening to ice on Earth?

• decreasing due to melting

• increasing due to freezing

• staying the same

• what ice?

Which causes temperatures to change on earth?

• Energy exiting the earth

• Energy entering the earth

• Energy both exiting and entering the earth

• None of these

Which gases cause MORE energy to be absorbed by the Earth

• Carbon Dioxide

• Methane

• Sulfur Dioxide

• Nitrogen Dioxide

• Water

Which scenarios will result in an increase in absorbed energy on earth?

• Lots of energy enters and only a little leaves

• Only a little energy enters and a lots of energy leaves

• Lots of energy enters and a lot of energy leaves

• Only a little energy enters and a little energy leaves

Climate researchers in Greenland can use ice core samples to tell them about methane in the atmosphere in the past. Researchers found a sample that showed a time period when METHANE in the atmosphere INCREASED. What happened to the amount of energy absorbed by Earth's surface during this time?

• During this time, the amount of energy absorbed by Earth’s surface STAYED at a constant level.

• During this time, the amount of energy absorbed by Earth’s surface changed UNPREDICTABLY.

• During this time, the amount of energy absorbed by Earth’s surface INCREASED.

• During this time, the amount of energy absorbed by Earth’s surface DECREASED.

Geologists have found rocks showing that about 700 million years ago, there was a time period when the amount of CARBON DIOXIDE in the atmosphere DECREASED. How did energy in the Earth system change during this time?

• There was MORE energy absorbed by Earth’s surface, because MORE energy entered than exited.

• There was MORE energy absorbed by Earth’s surface, because LESS energy entered than exited.

• There was LESS energy absorbed by Earth’s surface, because MORE energy entered than exited.

• There was LESS energy absorbed by Earth’s surface, because LESS energy entered than exited.

There are some bacteria that release methane into the atmosphere. Scientists think that if the number of these bacteria decreased, the amount of METHANE in the atmosphere would DECREASE. What would happen to energy in the Earth system if methane in the atmosphere decreases?

• Energy in the Earth system would DECREASE, because LESS energy would enter than exit.

• Energy in the Earth system would DECREASE, because MORE energy would enter than exit.

• Energy in the Earth system would INCREASE, because MORE energy would enter than exit.

Some scientists found that millions of years ago, there was a time when the number of trees increased very quickly, leading to a DECREASE in the amount of CARBON DIOXIDE in the atmosphere. What would you predict about the amount of energy absorbed by Earth's surface during this time?

• During this time, the amount of energy absorbed by Earth’s surface INCREASED

• During this time, the amount of energy absorbed by Earth’s surface DECREASED

• During this time, the amount of energy absorbed by Earth’s surface STAYED at a consistence level

• During this time, the amount of energy absorbed by Earth’s surface CHANGED UNPREDICTABLY

Which word means to take in?

• Atmosphere

• Advice

• Absorb

• Apple