What is a solar flare?

• A. A steady stream of particles emitted by the Sun.
• B. A sudden eruption of magnetic energy released on or near the surface of the Sun.
• C. A long-lasting bright arc of plasma in the corona.
• D. A shadow cast by the Sun on another planet

Answer: (B)

A solar flare is a sudden eruption of magnetic energy released in the Sun’s atmosphere, usually in active regions near sunspots. That rapid energy release accelerates particles and heats plasma, producing intense radiation across the electromagnetic spectrum—from radio waves to X-rays and gamma rays—and it lasts from minutes to hours. This is why the phenomenon is described as a quick, bright burst of energy rather than a steady wind or a persistent loop.

The steady stream of particles would be the solar wind, a continuous flow rather than a sudden event. A long-lasting bright arc in the corona describes coronal loops or prominences, not a flare. A shadow cast by the Sun on another planet is an eclipse, not an energetic release.