Will density increase or decrease with the crystallization of a magma?

The Earth's circumference is close to 25,000 miles

Indicate whether the statement is true or false.

The language of Madagascar is related to the languages of Africa

Indicate whether the statement is true or false.

Which of the following are often associated with the passage of a frontal system?

A) rapid change in temperature B) shift in wind speed and direction C) change in moisture content D) all of these

As base level is approached by a stream, the ability of a stream to erode its bed

A) increases. B) decreases. C) remains constant.