You know that the Sun is the source of heat on the Earth. But why do you think the heat varies from morning to night or from season to season and from place to place?
We are listing some variations here. Try to think a reason for it and discuss in the class before you proceed to read this chapter.
1. Cool in the early morning and warmer in the afternoon.
2. Warm in summer and cool in winter.
3. Cool on hill tops and warm in the plains.
4. Warm in equatorial region and cool in Polar Region.
The heat of the sun varies from morning to night, season to season and from place to place because of the curvature of the Earth’s surface. Due to the curvature, the same amount of solar energy falls on an area on the equator and on a larger area as we move north or south of it. Thus, it will get warmer on the equator than near the poles.
Students can further discuss each aspect in detail in class.
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.