Questions: Which statement best describes monsoons? They force cool, moist air from oceans to rise. They are winds that blow in the opposite direction of a normal wind. They bring heavy rain in the winter and in the summer. They influence precipitation as wind moves near a mountain.

The answer is the third one: They bring heavy rain in the winter and in the summer.

Explanation for each option:

1. "They force cool, moist air from oceans to rise." - This is not accurate. Monsoons are characterized by seasonal wind patterns that bring significant changes in weather, particularly heavy rainfall, rather than just forcing air to rise.
2. "They are winds that blow in the opposite direction of a normal wind." - This is not entirely correct. Monsoons are seasonal winds that change direction between summer and winter, but they are not simply the opposite of normal winds.
3. "They bring heavy rain in the winter and in the summer." - This is correct. Monsoons are known for bringing heavy rainfall during specific seasons, particularly in the summer in regions like South Asia. The winter monsoon can bring dry conditions or less intense rainfall.
4. "They influence precipitation as wind moves near a mountain." - While monsoons can influence precipitation patterns, this statement is more specific to orographic precipitation, which occurs when moist air is lifted over a mountain range.

Summary: Monsoons are seasonal winds that bring heavy rain during specific times of the year, particularly in the summer and sometimes in the winter, depending on the region.