they have lots of moisture in them, so when it rains or snows, they go white or lighter again.
clouds get black by the smoke and when its going to rain the water from the sea turns in gas and then goes on clouds.
There are no storms or clouds on mercury because the atmosphere is so tenuous.
Cumulonimbus clouds Cumulonimbus clouds.
Clouds turn grey as the water density increases. As the density increases less light can filter through so they begin to look darker. The darker a cloud is, the better the chances are that it will begin to rain. Large storms and hurricanes are dark grey and sometimes almost black in color for the very same reason.
cumulonimbus
No. Cumulus clouds are fair-weather clouds most of the time. Storm clouds are cumulonimbus.
There are dust storms and clouds on Mars. Winds are generated through the heating of the martian atmosphere. There are no water clouds like we see on earth though.
Such clouds are called cumulonimbus.
Because they all have clouds! JK LOL!
yes
no it does not it has a icy atmopspher
Storms!