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Biology, 22.10.2019 05:20 adswadsaasdads

Bacteria convert atmospheric nitrogen to which of the following in the process of nitrogen fixation?
question 1 options:

nitric acid

phosphorus

ammonia

nitrogen gas
question 2 (20 points)
question 2 unsaved

during which of the following steps of the water cycle is water changed from a vapor state to a liquid state?
question 2 options:

evaporation

precipitation

condensation

transpiration
question 3 (20 points)
question 3 unsaved

what impact can deforestation have on the water cycle?
question 3 options:

carbon dioxide is released into the air as trees are burned.

photosynthesis increases, thereby increasing the amount of carbon dioxide in the air.

transpiration declines.

the amount of nitrogen-fixing bacteria increases.
question 4 (20 points)
question 4 unsaved

which of the following is the source of energy for the water cycle?
question 4 options:

volcanic eruptions

the sun

winds

gravity
question 5 (20 points)
question 5 unsaved

why is nitrogen fixation such an important step in the nitrogen cycle?
question 5 options:

soil nitrogen is different.

plants can't use nitrogen in the form of n2.

bacteria convert the fixed nitrogen back into n2.

decomposers need to use nh4+.

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