How can solar flares affect Earth?

Answer:
X-rays and UV radiation emitted by solar flares can affect Earth's ionosphere and disrupt long-range radio communications. Direct radio emission at decimetric wavelengths may disturb operation of radars and other devices operating at these frequencies.
First answer by ID0414909553. Last edit by Bobolino. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].