Question id 417 - Meteorology - EASA Drone Quiz A2

It means the drone's camera lens is dirty
It indicates precipitation that is evaporating before it hits the ground, which cools the air rapidly and can create sudden, violent downdrafts (microbursts)
It shows that the airspace is currently closed
It means a solar flare is currently disrupting GPS

Training tests and timed exam simulations EASA Drone Quiz A2