People Reshape Steep Slopes, a Practice Called Terracing, in Order

question 56

Multiple Choice

People reshape steep slopes, a practice called terracing, in order to:

• A) help capture and retain rainfall
• B) provide a level place on which to farm
• C) promote soil formation
• D) protect soil from erosion
• E) all of these

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Definitions:

Hydrogen

A chemical element with the symbol H and atomic number 1, it is the lightest and most abundant chemical substance in the universe.

Oxygen

A chemical element (symbol O) with atomic number 8, essential for most forms of life and crucial in combustion processes.

Limiting Reactant

The reactant in a chemical reaction that is completely consumed first, limiting the amount of product that can be formed.

NaOH

Sodium hydroxide, a strong base used in the manufacture of soap, paper, and many other chemicals; it is highly caustic.