Scientists have observed that the average sunspots have increased in the last 50 years. Which of these statements best describes an effect of this increase in sunspots?
AEarth's temperature has become cooler.
BEarth's temperature has not changed over time.
CEarth's temperature has become warmer.
DEarth's temperature has reduced by fifty times.
AEarth's temperature has become cooler.
BEarth's temperature has not changed over time.
CEarth's temperature has become warmer.
DEarth's temperature has reduced by fifty times.