okay a couple.

Air Masses move from ________ (rain,winds)

A _______ front moves back and forth over the same area. (warm,statinary)

At ________ fronts, warmer air gradually rises above cooler air.(warm,cold)

winds move air.

stationary fronts do not change much.
cold fronts move cold air, low to the ground. Warm humid air rises over, and rain (or snow or sleet) forms.

To answer these questions, we need to understand the characteristics of air masses and fronts.

1. Air masses move due to differences in air pressure caused by changes in temperature and atmospheric conditions. These differences in air pressure result in the movement of air masses. Specifically, air masses move due to winds, not rain. Therefore, the correct answer is winds.

2. There are three types of fronts: warm fronts, cold fronts, and stationary fronts. A warm front occurs when warm air advances and replaces a mass of cooler air. In the case of a stationary front, there is little to no movement of the front boundary separating warm and cold air masses over a specific area. This means the front moves back and forth over the same area. Therefore, the correct answer is stationary.

3. At a warm front, warmer air gradually rises above cooler air. Warm fronts occur when a warm air mass overtakes a cooler air mass, causing the warmer air to rise and slide over the colder air. This can result in the formation of clouds and precipitation. Therefore, the correct answer is warm.

In summary:
1. Air masses move due to winds, not rain.
2. A stationary front moves back and forth over the same area.
3. At warm fronts, warmer air gradually rises above cooler air.