Q.21)-The Ice age ended about ____ years ago.
  • 140
  • 1,400
  • 14,000
  • 140,000
Q.22)-The languages used in China is
  • Chinese, English
  • Chinese, Arabic
  • Chinese, French
  • Chinese, Korean
Q.23)-The length of the day is determined in
  • astronomical units
  • solar terms
  • length of the hours
  • None of the above
Q.24)-The island of Sri Lanka formerly known as
  • Madagascar
  • Tasmania
  • Ceylon
  • None of the above
Q.25)-The islands of Seychelles are located in the
  • Arctic Ocean
  • Atlantic Ocean
  • Indian Ocean
  • Pacific Ocean
Q.26)-The highest sand dunes are found is
  • the Sahara desert
  • the Atacama desert
  • the Kalahari desert
  • the Gobi desert
Q.27)-The greatest variety of animal and plant species is found in
  • temperate grasslands
  • tropical moist forests
  • tundra regions
  • in hot deserts
Q.28)-The layer of the earth, immediately below the crust, is called
  • outer core
  • inner core
  • inner mantle
  • outer mantle
Q.29)-The highest mountains in Africa, which is not part of any mountains chain, is
  • Mt. Aconcagua
  • Mt. Kilimanjaro
  • Mt. Kosciuszko
  • Mont Blanc
Q.30)-The heavier silicates named as 'Sima' or silica + magnesium are most abundant in the
  • crust
  • core
  • mantle
  • ocean floors