This in turn causes the average temperature on Earth to rise. Which of the following observations supports that theory?
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Select from the following. [+] 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 absorbs and re-emits heat radiated from Earth's surface.; [+] Radiation on Earth's surface is increasing because of a hole in the ozone layers.;
Carbon dioxide in the upper atmosphere absorbs and re-emits heat radiated from Earth's surface.