cumuliform clouds
When the cloud is warmer than the enviroment it is called cumuliform or simply cumulus
Stratiform clouds
When the cloud is eqaul to or cooler than the enviroment it is call stratus or stratiform
Cumiliform cloud scattered
Can be caused by uneven surface heating
Cumulinimbus
Usually a towering cumulinimbus is cuased bu strong convection within the cloud causing it to rise.
A stratus cloud