Cumulus clouds indicate a fair atmosphere. These clouds are also called fair-weather clouds. These clouds are white in colour and looks just like floating cotton. These clouds are responsible for heavy rain, snow, lightning in the sky and sometimes tornadoes. Cumulus clouds are low level clouds which are present below 2000 meters. These clouds are present in troposphere layer of atmosphere.
The diagram shows 4 possible options for the centripetal force acting on the object represented as a black dot. The correct option is the direction marked as C since it points inwards and ties the object to its circular motion.
