Earthworms

question 47

Multiple Choice

Earthworms

• A) are unable to live in soil with pH values of less than 6.
• B) vertically rearrange soil material.
• C) usually guarantee the soil will be highly productive.
• D) are at their most numerous in temperate climates.
• E) are described by all of the above.

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Definitions:

Potential Energy

Energy in a chemical bond that is not being exerted or used to do work.

Electrons

Subatomic particles with a negative charge, orbiting the nucleus of an atom and involved in chemical reactions and conductivity.

Ions

Particles that carry a net electric charge as a result of either losing or acquiring one or more electrons.

Energy Waves

Oscillations that transfer energy from one place to another, such as sound waves, light waves, or electromagnetic waves.