Which of the following is NOT a way to conserve soil?

All _____________ contain energy that was once stored in cells of living things.

The greatest cause of soil loss is erosion by ________________.

The wise use of earth's resources is ________________.

The following are layers of Earth except _____________.

Minerals obtain many useful metals from ___________.

Earth's ________________ cannot be replaced in a short time.

The loose material that covers much of Earth's surface is ________.

When you warm a house with energy from the sun, you are using __________.

Fresh water and trees are examples of ______________.

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