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