Q21. Big bang theory is related to
(A) From continental drift
(B) From the origin of the universe
(C) From the origin of the Himalayas
(D) By volcanic eruptions
(B) From the origin of the universe
Q22. Which of the following planets is closest to Earth?
(A) Arun
(B) Mars
(C) Saturn
(D) Jupiter
(B) Mars
Q23. Which is the nearest planet to Earth?
(A) Venus
(B) Mercury
(C) Mughal
(D) Jupiter
(A) Venus
Q24. It takes the Earth to revolve around the Sun, approximately
(A) 365 days
(B) 365.25 days
(C) 365.50 days
(D) 365.75 days
(B) 365.25 days
Q25. At what average speed does the Earth revolve around the Sun in its orbit?
(A) 20 km/sec
(B) 29.8 km/sec
(C) 40 km/sec
(D) 50 km/sec
(B) 29.8 km/sec
Q26. Approximately how much distance does the Earth cover per minute while revolving?
(A) 49 km
(B) 59 km
(C) 69 km
(D) 28 km
(D) 28 km
Q27. The Earth is tilted on its axis
(A) 23 1/2°
(B) 66 1/2°
(C) 33 1/2°
(D) 42 1/2°
(A) 23 1/2°
Q28. The reason for day and night is
(A) Earth orbit
(B) Ground rotation
(C) Tilt of the earth’s axis
(D) Revolution of the moon
(B) Ground rotation
Q29. The Milky Way is classified as
(A) In the form of a spiral galaxy
(B) As Electric Galaxy
(C) As an irregular galaxy
(D) As a spherical galaxy
(A) In the form of a spiral galaxy
Q30. The time it takes for the Sun to revolve around the centre of our galaxy is
(A) 2.5 crore years
(B) 10 crore years
(C) 25 million years
(D) 50 crore years
(C) 25 million years
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