Question

The 500-mb map and other constant-pressure upper-air maps are actually topographic maps that give form or shape to imaginary surfaces on which the air pressure is everywhere the same. That is, the contour pattern reveals the 'hills' and 'valleys' of the constant-pressure surface. The contour pattern of the Figure 2 map indicates that, in general, the 500-mb surface (the surface where the air pressure is everywhere 500 mb) is at a ________ altitude in southern Canada than in the southern U.S.

a) Higher
b) Lower
c) Consistent
d) Variable

Answer 1

The contour pattern of the Figure 2 map indicates that, in general, the 500-mb surface is at a lower altitude in southern Canada than in the southern U.S. Option B is answer.

Step-by-step explanation:

Constant-pressure upper-air maps, such as the 500-mb map, serve as topographic representations of imaginary surfaces where air pressure remains uniform. The contour patterns on these maps depict the 'hills' and 'valleys' of these constant-pressure surfaces.

In the context of Figure 2, the question specifically addresses the altitude of the 500-mb surface in southern Canada compared to the southern U.S. The correct answer is (b) Lower, indicating that the 500-mb surface is generally at a lower altitude in southern Canada than in the southern U.S. This information provides insights into the atmospheric conditions and pressure distribution across different geographic regions, aiding meteorologists in understanding and predicting weather patterns.

Option B (Lower) is the answer.