More Questions on Earth
- Q. Variation in duration of day and night is due to: 1. rotation of earth on its axis 2. revolution of earth around the sun 3. inclination of earth at an angle of 66%.
A)1 and 3
B)1and 2
C)2 and 3
D)1, 2 and 3
Answer: 2 and 3
- Q. Choose the incorrect statement
A)The Sun's rays are vertical at all places on the days of the equinoxes
B)All meridians are of the same length
C)The axis of the earth is inclined at an angle of to the horizontal
D)The summer solstice for the Southern Hemisphere is in December
Answer: The Sun's rays are vertical at all places on the days of the equinoxes
- Q. Consider the following statements: 1. The tropical year is shorter than the sidereal year. 2. The solar day is longer than the sidereal day. Which of the statements given above is/are correct?
A)Both 1 and 2
B)1 only
C)2 only
D)Neither 1 nor 2
Answer: Both 1 and 2
- Q. Lunar eclipse is caused when the ________
A)Sun comes between the earth and moon
B)Moon comes between the sun and the earth
C)Earth comes between the sun and the moon
D)None of these
Answer: Earth comes between the sun and the moon
- Q. Geostationary orbit is at a height of ________
A)3600 km
B)6 km
C)1000 km
D)36,000 km
Answer: 36,000 km
- Q. Which one of the following minerals occurs abundantly in the Earth’s crust?
A)Manganese
B)Bauxite
C)Silica
D)Iron
Answer: Silica
- Q. The Mohorovicic (Moho) Discontinuity separates
A)Sima and Nife
B)Outer core and Mantle
C)Inner and Outer core
D)Crust and Mantle
Answer: Crust and Mantle
- Q. Which of the following is not an effect produced by rotation of earth?
A)Winds change their directions
B)It causes days and nights
C)All heavenly bodies like sun, moon, planets appear to move from East to West
D)Poles have days and nights of 6 months duration
Answer: Poles have days and nights of 6 months duration
- Q. What can be the maximum duration of totality for a solar eclipse?
A)1 hour 40 seconds
B)12.5 minutes
C)7 minutes 40 seconds
D)There is no maximum duration
Answer: 7 minutes 40 seconds
- Q. In how much time, Earth rotates once on its axis?
A)23 hours 10 minutes 2 sec
B)23 hours 30 minutes
C)23 hours 56 minutes 4.9 sec
D)24 hours
Answer: 23 hours 56 minutes 4.9 sec
- Q. ________ is a natural electrical phenomenon characterized by the appearance of streams of reddish or greenish light in the sky, especially near the northern or southern magnetic pole
A)Albopictus
B)Acaulis
C)Matus
D)Aurora
Answer: Aurora
- Q. The mapping of which of the following is most difficult ?
A)Interior of the Earth
B)Mountains
C)Plateaus and Plains
D)Oceans and their depth
Answer: Interior of the Earth
- 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. Which star is nearest to the Earth?
A)Pole star
B)Sun
C)Alpha Centauri
D)Chitra
Answer: Sun
- Q. The Gutenberg discontinuity is between ________
A)The outer core and the lower mantle
B)The crust and the mantle
C)The upper and lower mantles
D)The inner and outer cores
Answer: The outer core and the lower mantle
- Q. The latitude of a place expresses its angular position relative to the plane of
A)North pole
B)Axis of the Earth
C)Equator
D)South pole
Answer: Equator
- Q. The region which is resistant to the transformation of macro structure, is called?
A)Tectonic plate
B)Firm structure
C)Ancient structure
D)Shield
Answer: Shield
- Q. What is the approximate equatorial circumference of the earth?
A)40,000 Km
B)30,000 Km
C)35,000 Km
D)45,000 Km
Answer: 40,000 Km
- Q. Which one of the following is the correct sequence of the given continents in the decreasing order of their percentage of Earth’s land?
A)North America – Africa – Europe – South America
B)North America – Africa – South America – Europe
C)Africa – North America – South America – Europe
D)Africa – North America – Europe – South America
Answer: Africa – North America – South America – Europe
- Q. What is the position of the Earth when it is at the greatest distance from the Sun?
A)Perihelion
B)Aphelion
C)Antipode
D)Aldiatc
Answer: Aphelion
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