Which process allows water to enter the atmosphere?
What process adds carbon dioxide to the air?
Which are limiting nutrients for plant growth?
Which of these nutrients can be found in all organic compounds?
Which of the following would be a result of eutrophication of a lake?
Which best describes a possible negative impact of irrigation of farmland?
The ocean and the atmosphere serve as long-term storage areas for carbon and other nutrients. What are these storage areas called?
Actinobacteria sp. are fermenting organisms, which do not require oxygen to survive. These organisms break down organic material and convert it to inorganic material. Which part of the carbon cycle does this describe?
What is the name of the process that plants use to remove carbon dioxide from the atmosphere?
What is the effect of the biogeochemical cycles?
Why are bacteria a necessary part of the nitrogen cycle?
What would happen if there were no condensation stage in the water cycle?
Which statement best describes a human influence on the biogeochemical cycles?
Thiobacillus denitrificans is a species of bacteria that obtains its energy from carbon dioxide and inorganic compounds such as nitrogen in its environment. It is used in bioremediation (natural cleansing) of groundwater that contains excess nitrate, allowing the nitrates to be removed. Through what process does Thiobacillus denitrificans help bioremediate groundwater?
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