ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it is moved by the wind toward dry areas
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it is incorporated into the exoskeletons of flying insects that eat plants
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it is inhaled and exhaled by the birds
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it is carried by rain to the soil
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Detailed explanation-1: -Lightning can also fix nitrogen. The high temperature of a lightning bolt can break the bonds of atmospheric nitrogen molecules. Free nitrogen atoms in the air bond with oxygen in the air to create nitrogen oxides, which dissolve in moisture to form nitrates that are carried to Earth’s surface by precipitation.
Detailed explanation-2: -That’s where lightning comes into play. As lightning blasts through the atmosphere, it breaks apart nitrogen molecules. This allows them to combine with oxygen in the air to form nitrogen oxides. The rain dissolves these into nitrates, then carries them to Earth and into the soil.
Detailed explanation-3: -Nitrogen is fixed, or combined, in nature as nitric oxide by lightning and ultraviolet rays, but more significant amounts of nitrogen are fixed as ammonia, nitrites, and nitrates by soil microorganisms. More than 90 percent of all nitrogen fixation is effected by them.
Detailed explanation-4: -A small amount of nitrogen can be fixed when lightning provides the energy needed for N2 to react with oxygen, producing nitrogen oxide, NO, and nitrogen dioxide, NO2. These forms of nitrogen then enter soils through rain or snow. Nitrogen can also be fixed through the industrial process that creates fertilizer.