Question

Day Observations 1 sunny and warm 2 cloudy and rainy 3 drop in temperature 4 clear skies and cold temperatures 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? (1 point) Responses A warm front moved into the area. A warm front moved into the area. High levels of moisture are contained within an air mass. High levels of moisture are contained within an air mass. A warm air mass replaced a cold air mass. A warm air mass replaced a cold air mass. A cold front moved into the area.

Answer 1

Based on the student’s observations, the best explanation for the weather changes is "A cold front moved into the area."

Here's the reasoning:

1. **Day 1: Sunny and warm** - This likely indicates a warm air mass.
2. **Day 2: Cloudy and rainy** - This suggests the presence of moisture, indicating that a front may be approaching.
3. **Day 3: Drop in temperature** - A drop in temperature typically follows a cold front where cold air mass pushes out the warm air.
4. **Day 4: Clear skies and cold temperatures** - Following a cold front, clear skies are common as the cold, dense air moves in and stabilizes the atmosphere.

Thus, the observation of a drop in temperature and clear skies in conjunction with the initial warm conditions strongly suggests that a cold front moved into the area, causing these changes.