Question

describing prominences
which statements describe prominences? check all that apply.
☐ prominences are dark, cool areas on the surface of the sun.
☐ prominences are composed of cool, dense gas.
☐ prominences can disturb radio communications on earth.
☐ prominences cycle over an 11 - year period.
☐ prominences are loop shaped.
☐ prominences appear in groups.

Explanation:

• Dark, cool sun surface areas are sunspots, not prominences.
• Prominences are made of cool, dense plasma/gas anchored to the sun's surface.
• Ejections from prominences can disrupt Earth's radio communications.
• Prominences follow the sun's 11-year activity cycle.
• Prominences often form loop shapes as they arc from the sun's surface.
• Prominences do not typically appear in groups; this describes sunspot behavior.

Answer:

• Prominences are composed of cool, dense gas.
• Prominences can disturb radio communications on Earth.
• Prominences cycle over an 11-year period.
• Prominences are loop shaped.