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Global Warming, Real Threat to Our Planet

Global warming is the rise in the average temperature of Earth's atmosphere and oceans since the late 19th century and its projected continuation. Since the early 20th century, Earth's mean surface temperature has increased by about 0.8 °C (1.4 °F), with about two-thirds of the increase occurring since 1980.

Global Warming, Real Threat to Our Planet
  • 1 of 9:

    What causes warming of the climate?

  • A) Redhouse Gases
  • B) Greenhouse Liquids
  • C) Greenhouse Gases
  • D) Redhouse Liquids
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