If One State Affairs, A, Is a Necessary Condition for Another

question 47

Multiple Choice

If one state affairs, A, is a necessary condition for another state of affairs, B, then

• A) A cannot occur without B occurring.
• B) B cannot occur without A occurring.
• C) Both a and
• D) Neither a nor

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Definitions:

Point Bar

A sedimentary formation consisting of alluvium, built up along the inner curve of rivers and streams beneath the slip-off slope.

Floodplain

An area of relatively smooth land adjacent to a stream channel that is intermittently flooded when the stream overflows its banks.

Sedimentation

The process by which material is deposited by wind, water, or ice, often resulting in layers of sediment that can eventually form sedimentary rocks.

Stream Channel

A stream channel is the physical confinement of a river or stream, composed of a bed and banks, which directs the flow of water.