Section 5: Visitor Survey From carbon to hydrogen energy

Test - Comprehension and understanding - grades 4 to 8

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Item 1
Greenhouse gases act to cause global warming.

True
False

Item 2
Carbon dioxide is a greenhouse gas.

True
False

Item 3
You can tell carbon dioxide, because I've seen it coming out of car tail pipes and smoke stacks. It's gray.

True
False

Item 4
In the carbon cycle animals use carbon dioxide up and plants make it.

True
False

Item 5
Hydrogen fuel cells, that use pure hydrogen and pure oxygen, produce electricity cleanly without harm to the environment.

True
False

Item 6
Some algae and bacteria produce hydrogen naturally.

True
False

Item 7
All scientists agree that increasing CO2 concentrations in the air produce problems.

True
False

Item 8
Carbon dioxide harms plants and humans.

True
False

Item 9
Almost 1/2 of the world's oil is currently used for transportation.

True
False

Item 10
If the current rate of use of fossil fuels continues, we will probably run out within 100 years.

True
False

Click on the blue GRADE TEST button to grade the test.

An entry in the 2000 ThinkQuest Internet Challenge. Click on logo to the right for details.

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