Question

why conventional rainfall is called 4 o'clock rain

Answer 1

Convectional rainfall is also called 4 o 'clock rain: Convectional rainfall is the result of high rate of evaporation. Then condensation takes place and rain falls. At mid day , when the sun is at the highest position, the temperatures rise at the equator. This increases the evaporation rate. The rises air condenses at a certain altitude and falls as rain drops

Answer 2

Conventional rainfall is the result of high rate of evaporation. Then condensation takes place and rain falls. At mid day' when the sun is at the highest possition the temp. rise at equater. This increases the evaporation rate. The rises air condenses at a certain altitude and falls as rain drops.