Respuesta :
An increased number of sunspots causes an increase in Earth's temperature.
An increased number of sunspots can causes an increase in temperature of the Earth. Option A correct.
Sun Spot:
It is a dark area in the surface of the sun. It is caused by the higher magnetic activity in the area. This results in the lower temperature than the rest of the areas. This cause dark spot.
About 0.1% more Solar energy reaches the Earth, at the peak of the sun spot cycle,. This can increase global average temperatures by 0.05 - 0.1℃.
Therefore, an increased number of sunspots can causes an increase in temperature of the Earth.
To know more about sun spot,
https://brainly.com/question/14475113