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Information and IdeasMediumMain idea of a passage on sea glass

Information and Ideas practice question

Sea glass is broken bottle glass that the sea has tumbled smooth. It takes twenty years or more for the sharp edges to go, which is why collectors prize the rarer colours, such as red and cobalt, from bottles that have not been made for decades.

Which choice best states the main idea of the text?

  1. A. Sea glass is old bottle glass worn smooth by the sea, and its rarest colours come from bottles no longer made.Correct
  2. B. Sea glass is made in factories.
  3. C. Red sea glass is the most common kind.
  4. D. Sea glass takes a few weeks to form.

Answer: A. Sea glass is old bottle glass worn smooth by the sea, and its rarest colours come from bottles no longer made.

Origin, time, and why rare colours are prized.

Why the other answers are wrong

B. Sea glass is made in factories.
It comes from bottles tumbled by the sea.
C. Red sea glass is the most common kind.
Red is rare.
D. Sea glass takes a few weeks to form.
Twenty years or more.

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