Why do sunspots appear darker than the rest of the Sun's surface?

Sunspots are "dark" because they are cooler than their surroundings. A large sunspot might have a central temperature of 4,000 K (about 3,700° C or 6,700° F), much lower than the 5,800 K (about 5,500° C or 10,000° F temperature of the adjacent photosphere.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely