Q. Day and night are formed

Correct Answer

Due to the speed of rotaion

More Questions on Earth

  • Q. What is the study of Moon called?
    A)Iridology
    B)Selenology
    C)Cosmology
    D)Planetology
    Answer: Selenology
  • Q. How much is the difference of time between any two consecutive longitudes?
    A)4 minutes
    B)10 minutes
    C)14 minutes
    D)30 minutes
    Answer: 4 minutes
  • Q. The earth revolves round the sun in its orbit by approximately ________
    A)3° per day
    B)1° per day
    C)2° per day
    D)5° per day
    Answer: 1° per day
  • Q. The tide at its maximum height is known as ________
    A)Spring tide
    B)Equinox
    C)Neap tide
    D)Tsunami
    Answer: Spring tide
  • Q. “Mohs’ Scale” is used to indicate the ________
    A)Degree of viscosity of a liquid
    B)Degree of brittleness of a substance
    C)Degree of hardness of minerals.
    D)Degree of elasticity of a material
    Answer: Degree of hardness of minerals.
  • Q. On which of the following date/dates, Winter Solstice is observed in Northern Hemisphere? I. 21st December II. 5th August III. 10th January
    A)Only 3
    B)Only 1
    C)1 and 2 Both
    D)Only 2
    Answer: Only 1
  • Q. The speed of rotation of the earth is the highest ________
    A)Along the Tropic of Cancer
    B)Along the Equator
    C)At the North Pole
    D)Along the Arctic Circle
    Answer: Along the Equator
  • Q. The surface of Earth that lies between the Tropic of Cancer and the Tropic of Capricorn is called ________
    A)South Temperate Zone
    B)North Temperate Zone
    C)Frigid Zone
    D)Torrid Zone
    Answer: Torrid Zone
  • Q. Heat received by earth from the Sun is known as ________
    A)Solar radiation
    B)Insolation
    C)Solar heat
    D)Thermal radiation
    Answer: Solar radiation
  • Q. The Earth turns through 360° in 24 hours. Each 15° longitude represents ________
    A)One hour
    B)Half an hour
    C)Forty five minutes
    D)One hour fifteen minutes
    Answer: One hour
  • 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
    A)I, II and IV
    B)I and II
    C)I, II and III
    D)I, II, III and IV
    Answer: I, II and IV
  • Q. Tides are caused by the gravitational forces of
    A)Of Sun and Moon on Earth
    B)Of Earth on Moon
    C)Of Earth on Sun
    D)Of Moon on Earth
    Answer: Of Sun and Moon on Earth
  • 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 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. Which one of the following elements is most abundant in the earth’s crust?
    A)Silicon
    B)Oxygen
    C)Sulphur
    D)Carbon
    Answer: Oxygen
  • Q. The approximate circumference of the Earth is
    A)25,000 km
    B)13,000 km
    C)20,000 km
    D)40,000 km
    Answer: 40,000 km
  • Q. Latitude of place is indicative of its ________
    A)Amount of rainfall
    B)Time
    C)Altitude
    D)Temperature
    Answer: Temperature
  • 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. Which of the following is caused by the combine deffects of the gravitational forces exerted by the Moon and the Sun on sea levels?
    A)Tides
    B)Currents
    C)Runoff
    D)Waves
    Answer: Tides
  • Q. The imaginary line which connects places of similar height on map, are?
    A)Spot-Height
    B)Hachure
    C)Contour
    D)Isometric
    Answer: Contour

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