The Two Elements Most Abundant in the Earth's Crust Are

question 5

Multiple Choice

The two elements most abundant in the earth's crust are:

• A) helium and hydrogen
• B) iron and magnesium
• C) sodium and potassium
• D) silicon and oxygen
• E) iron and nickel

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Definitions:

Galen

An ancient Greek physician and philosopher whose work in the field of medicine influenced the development of various medical theories for centuries.

Conformity

The process of aligning one's behaviors, beliefs, and attitudes with the norms or standards of a society or group.

Physiological

pertains to the functions and processes that occur within living organisms to sustain life, including biochemical and physical activities.

Social

Relating to society or its organization, including interactions and relationships among individuals.