Why Is Living on a Floodplain Behind a Levee Safe

question 26

Multiple Choice

Why is living on a floodplain behind a levee safe from flooding?

• A)Levees are rarely overtopped.
• B)Water cannot seep under levees to flood the floodplain.
• C)Levee banks are rarely eroded enough to fail.
• D)Once a levee is built high enough to contain a 100-year flood, it will never flood.
• E)Actually, 100-year flood levels often continue to get higher with time.

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Definitions:

Bacteria

Single-celled microorganisms that can be found in a variety of environments, some of which can cause disease while others are beneficial.

Gram Stain

A method used in microbiology for the differentiation of bacteria into two groups, Gram-positive and Gram-negative, based on the chemical and physical properties of their cell walls.

Crystal Violet

A triarylmethane dye used in Gram staining, antiseptics, and also as a textile dye.

Microorganisms

Tiny living organisms, often microscopic, such as bacteria, viruses, fungi, and protozoa, that can have various effects on other living organisms.