• A3- UNIT 2
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  • 1. How old is the Earth?
    THE EARTH IS 4.6 BILLION YEARS OLD
  • 3. How old are the Mount Everest?
    The Mount Everest is about 60 million years old
  • 3. How old is the Amazon rainforest?
    The Amazon rainforest is only 10 million years old.
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