31.
When would you record the maximum angle of incidence of the sun's rays at the north pole?

32.
How many kilometers are represented by 1° of latitude?

33.
When does solar eclipse take place?

34.
What is the position of the Earth when it is at the greatest distance from the Sun?

35.
The planet which has the highest surface temperature is

36.
On which of the following date/dates, Winter Solstice is observed in Northern Hemisphere?
I. 21st December
II. 5th August
III. 10th January

37.
Sandstone is metamorphosed to

38.
Heat received by earth from the Sun is known as ________

39.
The boundary between Earth's Crust and Mantle is ________.

40.
Which of the following statements with regard to the term 'great circle' is not correct?

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