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

Correct Answer

Aurora

More Questions on Earth

  • 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 earth’s annual circuit round the sun covers a distance of ________
    A)966 million kms
    B)1,096 million kms
    C)1,036 million kms
    D)896 million kms
    Answer: 966 million kms
  • Q. The sunlight is available 24 hours on the longest day at which of the following latitudes of the Earth?
    A)63°
    B)49°
    C)66.5°
    D)69.51°
    Answer: 66.5°
  • Q. Lunar eclipse does not occur every month because ________
    A)The moon's orbit is not all the time in the same plane as the earth
    B)The sun's orbit is not always in the same plane as the moon
    C)The moon revolves at a slower speed than the earth
    D)None of these
    Answer: The moon's orbit is not all the time in the same plane as the 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. 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 revelations of a satellite photograph of the earth are as follows: 1. the Southern hemisphere bulges slightly more than the Northern hemisphere 2. it is slightly pear shaped ellipsoid of rotation 3. the polar axis of the earth is slightly shorter than the equatorial axis 4. the equatorial circumference is about 40,000km Which of the above statements are correct ?
    A)1, 2 and 4
    B)1, 2 and 3
    C)1, 2, 3 and 4
    D)2, 3 and 4
    Answer: 2, 3 and 4
  • 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 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 pair is incorrect?
    A)0° latitude - Equator
    B)0° longitude - Prime Meridian
    C)0° longitude - Equator
    D)23.5° North - Tropic of Cancer
    Answer: 0° longitude - Equator
  • 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. Isobar lines show
    A)Depth
    B)Pressure
    C)Rain
    D)Time
    Answer: Pressure
  • Q. Latitudes include 181 lines while longitudes are 360 lines because ________
    A)Longitude is a line that connects North Pole to South Pole and latitude is divided from east to west
    B)Longitude is divided from prime meridian while latitude is from equator
    C)Longitude is divided from equator while latitude is from prime meridian
    D)None of these
    Answer: Longitude is divided from prime meridian while latitude is from equator
  • Q. Which of the following Isohels are the isopleths of
    A)Rain
    B)Sunshine
    C)Flowering time
    D)Clouds
    Answer: Sunshine
  • Q. Tides in the sea have stored in them ________
    A)Gravitational potential energy
    B)Hydraulic energy
    C)Kinetic energy
    D)A combination of all the above three forms of energy
    Answer: A combination of all the above three forms of energy
  • 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. Spring tides occur when ________
    A)The moon, the sun and the earth are at right angles with the earth at the apex
    B)The moon is nearest to the earth
    C)The moon is farthest from the earth
    D)The moon, the sun and the earth are in the same line
    Answer: The moon, the sun and the earth are in the same line
  • 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. The point in the orbit of a moon that is farthest from the Earth and at which the moon’s velocity is at a minimum, the known as ________
    A)Umbra
    B)Apehelion
    C)Apogee
    D)Perihelion
    Answer: Apogee
  • Q. Insolation heats up the land masses more quickly than the water bodies because ________
    A)Water needs more energy to get warm
    B)Water is liquid
    C)Landmasses are solid
    D)Rocks are bad conductors of heat
    Answer: Water needs more energy to get warm

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