The Primary Source of Mercury in the Air Is from Emissions

question 50

Multiple Choice

The primary source of mercury in the air is from emissions from coal-fired electric power plants.An EPA regulation that required a reduction of this pollution has resulted in which one of the following?

• A)The supreme court ruled that the EPA rule was invalid.
• B)The supreme court ruled that the EPA had to consider the cost to power companies of complying with the ruling.
• C)There has been an increase in the number of coal-fired power plants being built.
• D)Mercury pollution has increased.

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Definitions:

Side Chain

The part of an organic molecule that is attached to the main chain (or backbone) of the molecule, which can influence the molecule's properties and reactivity.

Valine

An essential amino acid that is crucial for muscle growth, tissue repair, and energy provision in the body.

5-Membered Ring

A cyclic structure in organic chemistry consisting of five atoms, which can be of the same or different elements.

Amino Acid

An organic molecule that serves as the building block of proteins, containing both an amino group and a carboxyl group.