Question

1. which statement is true about solar flares?

happen only once every 11 years
caused by intense solar wind on the suns surface
occur when jets of gas stream out of the suns core
powered by the sudden release of magnetic energy stored in the corona

Explanation:

Solar flares are sudden bursts of radiation from the Sun's corona. They are not limited to once every 11 years (the 11-year cycle refers to solar activity peaks, not single flare frequency). They are not caused by solar wind (solar wind is a steady flow, not the trigger) or gas jets from the core. Instead, they result from the sudden release of magnetic energy stored in the corona when magnetic field lines reconnect.

Answer:

powered by the sudden release of magnetic energy stored in the corona