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Matter Cycles And The Atmosphere #2
Test Description: Carbon and Nitrogen Cycles and Greenhouse Gases
Instructions: Answer all questions to get your test result.
1) What has happened in the last 50 years that would make the carbon dioxide levels change?
A
increased burning of fossil fuels by people
B
decreased levels of ozone are found in the upper atmosphere
C
people have planted millions of trees to replace ones lost to farms
D
continents have moved and altered the air
2) During which time of year will the Earth usually have the lowest amounts of carbon dioxide?
A
Summer
B
Early Fall
C
Winter
D
Late Spring
3) Which of the following health problems would rise increase if the Earth lost the ozone layer?
A
diabetes
B
broken bones
C
constant cough
D
skin cancer
4) Which of the following is a good example of a carbon sink because it absorbs a lot of carbon dioxide out of the atmosphere?
A
Rainforest
B
Small Pond
C
Clouds
D
Herd of Cattle
5) What about our Earth could change if there were no greenhouse gases?
A
Temperatures would decrease and the Earth would begin to freeze.
B
Temperatures would increase and the Earth would get too hot.
C
The Sun's radiation would no longer reach Earth's surface.
D
The ozone layer would grow and become much larger.
6) Which of the following is NOT a way that carbon gets back into the atmosphere?
A
Animal Respiration
B
Volcanic Eruptions
C
Burning of Fossil Fuels
D
Photosynthesis
7) Which of the following can change atmospheric nitrogen (N2) into a form of nitrogen usable by living things?
A
Condensation in Earth's lower atmosphere
B
Cellular Respiration by animals
C
Photosynthesis by plants
D
Nitrogen Fixation by bacteria in the soil.
8) What category in the United States usually has the most greenhouse gas emissions?
A
Industrial and Manufacturing
B
Agriculture, Forestry, and Waste
C
Transportation
D
Electricity Production
9) Which of the following is a major way that humans impact the amount of nitrogen in the soil?
A
Using too much ferilizer on their farms and gardens
B
Polluting rivers and streams
C
Exhaust from cars and other forms of transportation
D
Breathing nitrogen in from the atmosphere
10) Which of the following is helping humans reduce the amount of fossil fuels being burned?
A
Development of alternative energy sources like solar power and wind power.
B
Most people do not drive gas-powered cars anymore.
C
People are planting more trees.
D
People cannot find any more fossil fuels in the ground.
*select an answer for all questions
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