Why Did the Number of AIDS-Related Deaths Decrease in the Late

question 215

Multiple Choice

Why did the number of AIDS-related deaths decrease in the late 1990s?

• A) the incidence of homosexuality decreased
• B) a change in the definition of AIDS
• C) several breakthroughs in drug treatment
• D) breakthroughs in discovering a cure

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Definitions:

Ions

Atoms or molecules that have gained or lost one or more electrons, thus acquiring a charge.

Acid

A substance that is a hydrogen ion (proton) donor; acids unite with bases to form salts. Compare with base.

Atomic Mass

The mass of an atom expressed in atomic mass units (amu), essentially equivalent to the number of protons and neutrons in the nucleus.

Atom

The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, with electrons orbiting the nucleus.