Sentence examples for nitrogen cycle from inspiring English sources

The sources of nitrate are nitrogen cycle, industrial waste, nitrogenous fertilizers etc.

As is true in the nitrogen cycle, the activities of microorganisms are crucial in the global cycling of this nutrient.

(See also nitrogen cycle).

This is likely to be the largest impact on the nitrogen cycle in 2.5bn years.

The circumventing of the nitrogen cycle allowed Homo sapiens to reproduce at an unprecedented pace.

Nitrogen cycle, circulation of nitrogen in various forms through nature.

That makes it all the more disturbing that human activities are upsetting the earth's natural nitrogen cycle.

Other microorganisms perform important tasks that propel the nitrogen cycle along.

The nitrogen cycle can illustrate the role of bacteria in effecting various chemical changes.

Discusses air, water & soil pollution; the nitrogen cycle; the weather cycle; a detailed study of soil pollution, in Decatur, Ill.; & how the supply of minerals is finite.

Nitrate reduction is an important process in the nitrogen cycle.