41. The scientist who studies rocks is called
(A) Geologist
(B) Zoologist
(C) Botanist
(D) Astronauts
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42. The sunlight is a rich source of
(A) Vitamin K
(B) Vitamin A
(C) Vitamin D
(D) Vitamin E
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43. A Lunar eclipse occurs when
(A) Earth lies between the sun and the moon
(B) Sun lies between the earth and the moon
(C) Moon lies between the earth and the sun
(D) None of these
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44. Capacity to do work in called?
(A) Force
(B) Friction
(C) Energy
(D) None of these
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45. The baby plant inside the seed is known as
(A) an embryo
(B) Seed coat
(C) Cotyledon
(D) Chorophyll
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46. Which gas is not good for us?
(A) Nitrogen (B) Oxygen (C) Carbon dioxide (D) Carbon monoxide
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47. In which of the following crops are grown in special nursery beds before they are transplanted in the field
(A) Paddy (B) Corn (C) Wheat (D) Peas
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48. Wood cutter spilt logs of wood using a
(A) Screw jack (B) Wedge (C) Crowbar (D) Pulley
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49. The shortest shadow of an object is formed by sunlight at
(A) 8 a.m (B) 10 a.m (C) 12 noon (D) 4 p.m.
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50. Water is used as a source of energy for generating electricity in
(A) Thermal Power Stations (B) Nuclear Power Plants (C) Gobar Gas Palnts (D) Hydro electric Power Stations
Answer:
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