Tall, dense clouds fill the sky during a thunderstorm, bringing hail, lightning, and heavy rain. which type of clouds are these?

Cumulonimbus clouds

Explanation:

Cumulonimbus clouds are large clouds that reach from the lower levels of the atmosphere to the upper levels. Cumulonimbus clouds produce thunderstorms, hail, lightning, and heavy rain.

6/12=1/2

step-by-step explanation: