The Most Important Reason Why Most Farmers in Northeast China

question 18

Multiple Choice

The most important reason why most farmers in northeast China grow crops other than wet rice is

• A) cultural preference.
• B) tradition.
• C) climate.
• D) soil.
• E) harvesting wet rice requires expensive machinery.

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Definitions:

Nitrogen Fixation

The process by which certain microorganisms convert atmospheric nitrogen into a form that can be used by plants to synthesize proteins and nucleic acids.

Ammonification

Ammonium-producing process of decomposition.

Nitrification

Conversion of ammonium to nitrate.

Trophic Category

A classification describing the position of organisms within a food chain, based on their feeding relationships and energy transfer.