A student tracks the daily weather. The student’s observations are logged in the table. Which factor in the atmosphere best explains the student’s observations?


A cold front moved into the area.

High levels of moisture are contained within an air mass.


A warm air mass replaced a cold air mass.

A warm front moved into the area.

To determine which factor in the atmosphere best explains the student's observations, we can analyze the given options and consider their effects on weather patterns:

1. A cold front moved into the area: When a cold front moves into an area, it often brings colder air, which can cause a drop in temperature and precipitation such as rain or snow. If the student noticed a significant drop in temperature and precipitation, this factor could explain their observations.

2. High levels of moisture are contained within an air mass: Moisture content in the air plays an essential role in weather patterns. If the student observed high levels of humidity or experienced precipitation like rain, this factor could explain their observations.

3. A warm air mass replaced a cold air mass: The movement of different air masses can also impact weather conditions. If the student noticed a change in temperature with the arrival of a warmer air mass, this factor could explain their observations.

4. A warm front moved into the area: Similar to a cold front, a warm front moving into an area can bring warmer air and potentially result in precipitation. If the student observed a rise in temperature and experienced precipitation, this factor could explain their observations.

To determine which factor best explains the student's observations, it is necessary to have additional information about the specific weather conditions, such as temperature changes and precipitation. This will help identify the most likely factor influencing the student's observations.