Test Your Knowledge on Global Warming!

by: chris312
  1. 1

    What is global warming?

  2. 2

    Global warming is a major environmental issue concerning all parts of the Earth?

  3. 3

    What are the main causes of global warming?

  4. 4

    What are the effects of global warming?

  5. 5

    What kind of car can reduce carbon emission?

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