Our Planet and Our Lives Are Powered by

question 75

Multiple Choice

Our planet and our lives are powered by

• A) energy derived from inside Earth.
• B) radiant energy from the Sun.
• C) utilities and oil companies.
• D) shorter wavelengths of gamma rays, X-rays, and ultraviolet.

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Definitions:

Ovum

A female reproductive cell or egg that, when fertilized by a sperm, can develop into a new organism.

Mercury

A chemical element with symbol Hg and atomic number 80, known as quicksilver, which is a liquid metal at room temperature.

Expectant Mothers

Women who are pregnant and anticipating the birth of their child.

High Levels

A term that can refer to a high degree or intensity of something, such as high levels of pollution, stress, or achievement.