Cumulonimbus clouds are large and dark, and are usually associated with rain, hail, and snow.
The one with three lines and here is a chart if you need any more help :D
The sun is the source of energy for about all plant life.
Answer:
The answer is 1: Occurs in fluids.
Explanation:
Convection happens when a lot of heat in fluids/gas move and/or take the place of particles with less heat.
