Air Pollution in Tehran _________________

question 25

Multiple Choice

Air pollution in Tehran _________________

• A) comes primarily from burning fuel wood
• B) is caused mainly by very high levels of CFCs and acid deposition
• C) is caused primarily by vehicles unequipped with pollution control technology
• D) is far less serious than in Los Angeles
• E) has been reduced by 90% thanks to strict air pollution laws

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Definitions:

Social Comparison

The comparison of oneself to others in ways that raise one’s self-esteem.

Control Group

A control group is a baseline group in an experiment that does not receive the experimental treatment, allowing researchers to measure the effect of the treatment by comparing it to this group.

Self-Fulfilling Prophecy

A belief or expectation that an individual holds about a future event that manifests because the individual holds it.

Subject Bias

The tendency for study participants to respond or behave in a certain way because they are aware they are being observed or evaluated.