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During which time of year will the Earth usually have the lowest amounts of carbon dioxide?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
Which of the following can change atmospheric nitrogen (N2) into a form of nitrogen usable by living things?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
Which of the following is a major way that humans impact the amount of nitrogen in the soil?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
Which of the following is a good example of a carbon sink because it absorbs a lot of carbon dioxide out of the atmosphere?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
What category in the United States usually has the most greenhouse gas emissions?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
Which of the following health problems would rise increase if the Earth lost the ozone layer?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
Which of the following is NOT a way that carbon gets back into the atmosphere?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
Which of the following is helping humans reduce the amount of fossil fuels being burned?
Transportation
Photosynthesis
Nitrogen Fixation by bacteria in the soil.
Using too much ferilizer on their farms and gardens
Development of alternative energy sources like solar power and wind power.
Rainforest
Winter
skin cancer
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