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प्रश्न
Give reasons for the following
Vertical rays are hotter than slanting rays.
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उत्तर १
Vertical rays are hotter, because these cross shorter distance from the sun to the earth. Consequently the tropical belt is hotter than temperate and polar areas.
उत्तर २
Vertical rays remain focussed over a shorter area than slanting rays. During slanting rays solar radiation is spread over a larger area.
संबंधित प्रश्न
Which temperature zone receives almost vertical rays of the sun and which zones receive slanting rays?
Give a reason for the following:
A globe is the most popular model of the earth.
Name the two reference lines with respect to which the distances of various places on the earth’s surface are measured?
Give reasons for the following
Noon is hotter than morning.
Describe the two interesting phenomena made by the circle of illumination viz., Solstice and Equinox.
Describe how seasons are made and reversed between the Northern and Southern Hemispheres.
Give reasons for the following statement:
Beyond the tropics, the Sun is never overhead
Give reasons for the following:
The variation in the lengths of day and night goes on increasing polewards.
Why are days longer than nights in summer?
Why are days and nights equal at all places on earth on September 23?
