Since the 1960s,high-Yield Varieties of Rice,corn,and Wheat Have Kept Millions

question 33

True/False

Since the 1960s,high-yield varieties of rice,corn,and wheat have kept millions of people from starving.

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Definitions:

Oxygen

A chemical element with symbol O, essential for cellular respiration in most aerobic organisms.

Nitrogen

A chemical element with symbol N and atomic number 7, essential for life's building blocks like amino acids, proteins, and nucleic acids.

Carbon

A chemical element with symbol C, essential as the basis for all known living organisms, and forming the basis of organic chemistry.

Enzymes

Biological molecules that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.