Q. Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate

Answer

Correct Answer : The radius of the Earth

Q. The acceleration due to gravity at the equator

Answer

Correct Answer : Is less than that at the poles

Q. The alignment of the lines of beginning and end is expressed by

Answer

Correct Answer : Feasibility

Q. The amount of insolation received at a place on the surface of the earth depends on ________

Answer

Correct Answer : Both (a)and (b)

Q. The antipodal position of a place located at 35° south and 80° west is

Answer

Correct Answer : 35° north and 100° East

Q. The approximate circumference of the Earth is

Answer

Correct Answer : 40,000 km

Q. The approximate diameter of the earth is ________

Answer

Correct Answer : 12,800 Km

Q. The area of the Earth’s total surface is of the order of ________.

Answer

Correct Answer : 510 million square kilometres

Q. The axis of rotation of earth is tilted by 23.5° to the plane of revolution around the sun. The latitude of Mumbai is less than 23.5° whereas the latitude of Delhi is more than 23.5°. Which one of the following statements in this regard is correct?

Answer

Correct Answer : At Mumbai the sun can come overhead, but it will never do so at Delhi

Q. The boundary between Earth’s Crust and Mantle is ________.

Answer

Correct Answer : Moho discontinuity