Question

please give reasons for the following

Answer 1

1 because of the tilt of axis the altitude of sun varies

2 seasons are reversed in northern and southern hemispheres as the earth revolves and only one part faces the sun

3 this event is known as equinox as the sun crosses on the equator making day and night equal

5 as the sun can be seen even at midnight

4 due to the rotation of earth the winds in northern hemisphere get deflected to left and winds in southern hemisphere get deflected to right

6 as the speed of rotation is maximum at equator and minimum at poles

7 because chennai is nearer to the equator

9 noon is hotter as the sun is directly above our heads hence we receive more heat

Answer 2

Answer:

10 - It is because the amount of solar energy,i.e.,the rays of the sun, gets on decreasing as it reaches the poles. The areas near the equator experience equal duration of day and night than the areas away from the equator

11 - The sun is never overhead beyond the tropics due to the latitudes. The sun's rays always fall directly on 0° latitude which is known as the equator. The sun rays can be experienced overhead till the tropic of cancer and capricorn in the northern and southern hemispheres of the earth respectively.

12 - The earth is tilted on its axis, because of which very poor sunlight is allowed to reach the north and south poles. When the north pole is tilted towards the sun,it experiences continuous day light for six months. And when the pole is tilted on the other side, it experiences continuous night for six months.