Question: 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 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.
Answer: C