A meteorologist uses a weather map to explain an upcoming change in weather. The map shows a blue line with triangles approaching a red line with semicircles. Based on the map, which weather prediction is most valid?
A. a significant drop in temperature will occur across the area
B. there is no chance of precipitation in the forecast
C. warm temperatures will replace cold temperatures
D. humidity levels will rise
The correct answer is A. A significant drop in temperature will occur across the area.
In weather maps, blue lines with triangles represent cold fronts, while red lines with semicircles represent warm fronts. When a cold front (blue line with triangles) approaches a warm front (red line with semicircles), it indicates that the colder air is displacing the warmer air. This typically leads to a significant drop in temperature across the area. Therefore, based on the given map, the most valid weather prediction would be a significant drop in temperature.