Question

question 20 (5 points) listen which of the following explanations accounts for the formation of sunspots? a) magnetic field reversal causes portions of the sun to die slowly over time, leaving dark marks. b) volcanic eruptions are sustained by the photosphere, resulting in hardened lava on the suns surface. c) the movement of plasma is much faster on the poles than on the suns equator, and this creates pockets of intense heat. d) the curvature of magnetic fields near the suns equator creates pockets in the photosphere that arent warmed by convection.

Explanation:

Sunspots are cooler, darker areas on the Sun's surface. They form due to intense magnetic fields that inhibit the normal convective flow of hot plasma in the photosphere, creating regions that aren't warmed as effectively by convection. Option A is incorrect as the Sun doesn't have parts "dying" in that way. Option B is wrong since the Sun doesn't have volcanic eruptions like Earth. Option C is inaccurate as the faster - moving plasma isn't the cause of sunspots.

Answer:

D. The curvature of magnetic fields near the sun's equator creates pockets in the photosphere that aren't warmed by convection.