More Questions on Earth
- Q. All the watches of a country are set according to ________
A)Greenwich mean time
B)Local time
C)Standard time of the country
D)Time of sunrise and sunset
Answer: Standard time of the country
- Q. The permanent tilt of the earth’s axis and the revolution of the earth in its orbit together cause: I. deflection of winds and ocean currents II. differences in time between places on different meridians III. varying length of day and night at different times of the year IV. changes in the altitude of the mid-day sun at different times of the year
A)III and IV
B)II, III and IV
C)I and IV
D)I, II and III
Answer: III and IV
- Q. The mean radius of the earth is approximately ________
A)9600 km
B)3200 km
C)6400 km
D)12800 km
Answer: 6400 km
- Q. Who was the first to measure the circumference of the Earth?
A)Eratosthenes
B)Erechtheus
C)Aegeus
D)Apheidas
Answer: Eratosthenes
- Q. Which of the following is the best definition of ‘Tides’ ?
A)A periodic rise and fall of sea water caused by the gravitational force of moon and sun on earth
B)A powerful movement of the ocean which proceed constantly in a definite direction
C)A great circulatory movement of sea water caused by difference in density of sea water
D)A wind and pressure system having a low pressure in centre and circular wind motion
Answer: A periodic rise and fall of sea water caused by the gravitational force of moon and sun on earth
- Q. The speed of rotation of the earth is ________
A)39.5 km/sec.
B)25 km/sec.
C)31 km/sec.
D)29.72 km/sec.
Answer: 29.72 km/sec.
- Q. Owing to the equatorial bulge and the polar flattening, the polar radius of the earth falls short of the equatorial radius by about ________
A)41 km
B)22 km
C)36 km
D)53 km
Answer: 22 km
- Q. The process of water getting evaporated from the surface of leaves is known as
A)Transpiration
B)Evaporation
C)Evapo-transpiration
D)Transportation
Answer: Transpiration
- Q. The amount of insolation received at a place on the surface of the earth depends on ________
A)Its longitude
B)Its climate
C)Its latitude
D)Both (a)and (b)
Answer: Both (a)and (b)
- Q. In the context of ‘time’ GMT means
A)Global Mean Time
B)General Meridian Time
C)Greenwich Mean Time
D)None of these
Answer: Greenwich Mean Time
- Q. On December 22, the sun: 1. is not visible at north pole 2. is only visible for a few minutes at the Antarctic Circle 3. rises south of east and sets south of west at the Tropic of Cancer 4. rises south of east and set south of west at the equator
A)1, 3 and 4
B)1 and 3
C)2, 3 and 4
D)1, 2, 3 and 4
Answer: 1, 3 and 4
- Q. Which of the following pairs of metals are supposed to constitute the internal core of the earth?
A)Iron and Copper
B)Chromium and Iron
C)Magnesium and Lead
D)Nickel and Iron
Answer: Nickel and Iron
- Q. Magma that reaches earth’s surface and then solidifies is called
A)Quartz
B)Granite
C)Lava
D)Silicates
Answer: Lava
- Q. A person sets off from Alaska on a Tuesday and reaches New Zealand the next day which will be ________
A)Thursday
B)Tuesday
C)Wednesday
D)Friday
Answer: Thursday
- Q. Evidence suggests that life on Earth has existed for about ________.
A)35 million years
B)3.5 million years
C)35 billion years
D)3.5 billion years
Answer: 3.5 billion years
- Q. In which of the following areas, the “Midnight Sun” can be seen?
A)Arctic and Antarctica circle
B)In tropical areas
C)In temperate areas
D)Anywhere during solar eclipse
Answer: Arctic and Antarctica circle
- Q. Day and night are formed
A)Due to the speed of rotaion
B)Due to the shape of the orbit of Earth
C)Due to the motion of revolution
D)None of these
Answer: Due to the speed of rotaion
- Q. The International Date Line makes slight deviation from 180° meridian so that it ________
A)Does not divide a group of islands under the same administration
B)Divides the land masses under the same administration
C)Does not divide the Bering strait
D)Divides the Pacific Ocean into two equal halves
Answer: Does not divide a group of islands under the same administration
- Q. We always see the same surface of the Moon because
A)It takes the same time to rotate on its axis and moving around the Earth
B)It is smaller than the Earth
C)It rotates on its axis
D)It moves with the same speed at which Earth moves around the Sun
Answer: It takes the same time to rotate on its axis and moving around the Earth
- Q. The Earth is an oblate spheroid and not a perfect sphere. This is because 1. the Earth has a rotational motion and the rotational speed increases as one goes from the Poles towards the Equator. 2. the Equator experiences greater gravitational pull from the Sun. 3. the intensity of sunlight received at the Equator is greater than that at the Poles.
A)3 only
B)1 only
C)1 and 2
D)1, 2 and 3
Answer: 1 and 2
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