Question

An Earth-sized dark blemish found on the surface of the sun. The dark color of the sunspot indicates that it is a region of lower temperature than its surroundings is a _____________.

a) Solar prominence
b) Sunspot
c) Photosphere anomaly
d) Solar flare

Answer 1

An Earth-sized dark blemish on the Sun characterized by a lower temperature than its surrounding areas is known as a sunspot.

Step-by-step explanation:

An Earth-sized dark blemish found on the surface of the sun, which is a region of lower temperature than its surroundings, is known as a sunspot. Sunspots appear darker because they are cooler than the surrounding areas on the Sun's surface, specifically the photosphere.

With temperatures around 3800 K for sunspots compared to the photosphere's 5800 K, these spots are large and dark features resulting from increased magnetic activity. Despite being cooler, sunspots would still shine brightly if isolated from the Sun, as they are hotter than the surfaces of many stars.