*Question*: Which of the following changes occurs as a solid is heated?
*Answer*: The average molecular speed in the solid increases.

*Question*: A researcher found shark fossils on top of a mountain. This evidence suggests which of the following about this region?
*Answer*: It was once covered by an ocean.

*Question*: The ocean water near the equator absorbs more heat throughout the year than ocean water near the North Pole. Which of the following best explains this difference?
*Answer*:
The equator receives more direct sunlight.