Large magnetic disturbances on the Sun's surface are called sunspots and produce increased amounts of solar wind.

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Sunspots are regions on the Sun's surface where the magnetic field is concentrated, causing them to appear darker and cooler than their surroundings. These large magnetic disturbances can result in increased amounts of solar wind, which is the stream of charged particles that flows out from the Sun into space.

Large Magnetic Disturbances on the Sun's Surface Are Called Sunspots