Q. Which of the following are true regarding the crust of the earth? I. It is the outer thin layer with a total thickness of about 100 km II. It forms around 0.5% of the earth’s volume III. The outer covering of the crust is of sedimentary material IV. The lower layer of the crust consists of basaltic and ultra-basic rocks

Correct Answer

I, II and IV

More Questions on Earth

  • Q. Which among the following imaginary line lies at 0° latitude?
    A)Tropic of Capricorn
    B)Equator
    C)Tropic of Cancer
    D)Prime Meridian
    Answer: Equator
  • Q. Isobar lines show
    A)Depth
    B)Pressure
    C)Rain
    D)Time
    Answer: Pressure
  • Q. Which one of the following is not the effect of the revolution of the Earth.
    A)Determination of latitudes
    B)Change of seasons
    C)Length of days and nights
    D)Change in the direction of winds and ocean currents
    Answer: Change in the direction of winds and ocean currents
  • Q. Which of the following are true regarding the Prime meridian? 1. It passes through the centre of a certain country 2. It passes through the centre of the Globe 3. It passes through the observatory at Greenwich, near London.
    A)1, 2 and 3
    B)1 and 2
    C)1 and 3
    D)2 and 3
    Answer: 1, 2 and 3
  • Q. When and where did the concept of the Earth Hour started?
    A)April, 2008 in Tokyo, Japan
    B)June, 2007 in Christchurch, New Zealand
    C)May, 2009 in Colombo, Srilanka
    D)March, 2007 in Sydney, Australia
    Answer: March, 2007 in Sydney, Australia
  • Q. Magma that reaches earth’s surface and then solidifies is called
    A)Quartz
    B)Granite
    C)Lava
    D)Silicates
    Answer: Lava
  • Q. The earth rotates around its axis from ________
    A)South to north
    B)North to south
    C)East to west
    D)West to east
    Answer: West to east
  • Q. Why does Russia have many local time differences?
    A)Because of its long east-west stretches
    B)Because it keeps trade relations with many countries of the world
    C)Because it experiences a wide range of climatic conditions
    D)Because it is divided into a number of states on political grounds
    Answer: Because of its long east-west stretches
  • Q. If the difference in time between, two places were 2 hours and 20 minutes, then the difference in their longitudes would be ________
    A)40°
    B)30°
    C)35°
    D)45°
    Answer: 35°
  • Q. Sea tides show variations because of ________
    A)Distorted spherical shape of the earth
    B)Variations in gravitational pull of the moon
    C)Variations in gravitational pull of the sun
    D)Different phases of the moon
    Answer: Different phases of the moon
  • Q. The position of a planet when it is nearest to the Sun, is called ________
    A)Apigee
    B)Perihelion
    C)Apihelion
    D)Perigee
    Answer: Perihelion
  • Q. The incoming short-wave solar radiation is balanced by an equal amount of long-wave radiation from earth going back to space. This is known as ________
    A)Heat balance of earth
    B)Earth radiation
    C)Wave balance of earth
    D)Radiation exchange
    Answer: Heat balance of earth
  • Q. Due to gravity, acceleration at the Equator is
    A)Equal to acceleration on poles
    B)Less than acceleration on poles
    C)More than acceleration on poles
    D)Not dependant on the centrifugal acceleration of Earth
    Answer: Less than acceleration on poles
  • Q. When rain falls through a cold layer of air near the Earth’s surface, raindrops get frozen into ice. This type of precipitation is called
    A)Snowstorm
    B)Hail
    C)Snowfall
    D)Sleet
    Answer: Sleet
  • Q. Which of the following pair is CORRECT? I. Prime Meridian – Longitude, II. Tropic of Cancer – Latitude, III. Equator – Latitude
    A)2 and 3
    B)1 and 2
    C)1 and 3
    D)All options are correct
    Answer: All options are correct
  • 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?
    A)At Mumbai the sun can come overhead, but it will never do so at Delhi
    B)The sun can come overhead at both these places
    C)The sun will never come overhead at either of these places
    D)At Delhi the sun can come overhead but it will never do so at Mumbai
    Answer: At Mumbai the sun can come overhead, but it will never do so at Delhi
  • Q. The point below the surface where an earthquake originates is called ________.
    A)Epicentre
    B)Tsunamis
    C)Focus
    D)Eye of the Earthquake
    Answer: Focus
  • Q. Antipodes are ________
    A)Places located at a point where degree of latitude is equal to degree of longitude
    B)Lines joining places having a time difference of 12 hours
    C)Places diametrically opposite on earth's surface
    D)Lines joining places having the same depths
    Answer: Places diametrically opposite on earth's surface
  • Q. If a traveller going from Vancouver to Tokyo crosses the International Date Line on Saturday, what will be the day for him at Tokyo?
    A)Sunday
    B)Friday
    C)Saturday
    D)Monday
    Answer: Sunday
  • Q. What is the approximate circumference of Earth?
    A)80,000 Km
    B)40,000 Km
    C)60,000 Km
    D)1,00,000 Km
    Answer: 40,000 Km

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