What Are Some Effects of Building a Dam

question 49

Multiple Choice

What are some effects of building a dam?

• A)A stream has more sediment below the dam and so can erode more efficiently.
• B)The reservoir (lake)traps sediment that over time fills up part of the reservoir.
• C)A dam,whether constructed by nature or by humans,represents a permanent change in base level.
• D)The stream erodes into the land instead of depositing sediment,where it enters the reservoir.

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Definitions:

Inadvertently Smiles

Smiling unintentionally or without conscious decision, often as a natural reaction to certain stimuli or thoughts.

Validity of Measure

Refers to the degree to which a test or instrument accurately measures what it intends to measure.

Variability

The extent to which data points in a set differ from each other and from the mean, indicating the spread or dispersion of the dataset.

Double-blind Design

An experimental design in which neither the participants nor the experimenters know who is receiving a particular treatment, used to eliminate bias in research findings.