Which of the Following Explanations Best Accounts for the High

question 5

Multiple Choice

Which of the following explanations best accounts for the high density of the planet Mercury?

• A)Its material is compressed by high internal pressures
• B)It contains a large fraction of iron and other metal
• C)It has a large range of surface temperatures
• D)It has a large gravity that compresses its surface layers

---

Definitions:

Brain Stem

The brain stem is the lower part of the brain that connects to the spinal cord and controls vital functions such as heart rate, breathing, and sleep cycles.

AIDS-Infected

A term used to describe individuals who have been infected by the HIV virus and have developed the advanced state of the infection, known as Acquired Immunodeficiency Syndrome (AIDS).

SIDS

Sudden Infant Death Syndrome, an unexplained death of a seemingly healthy baby, typically during sleep, in infants under one year old.

Sleep On Backs

A recommended sleeping position for infants to reduce the risk of Sudden Infant Death Syndrome (SIDS), also known as the supine sleeping position.