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ARC-Easy / LEAP_2000_8_1 / Many scientists accept the theory that excess emission of carbon dioxide from…

Problem

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question

Many scientists accept the theory that excess emission of carbon dioxide from cars and industry causes a layer of gas in the upper atmosphere that traps heat. This, in turn, causes the average temperature on Earth to rise. Which of the following observations supports that theory?

choices

  • The summer of 1998 was one of the hottest summer seasons on record.
  • Carbon dioxide gas from cars and industry is a product of burning that produces heat.
  • Carbon dioxide in the upper atmosphere reflects heat radiated from Earth's surface.
  • Radiation on Earth's surface is increasing because of a hole in the ozone layer

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