Answers

2016-03-29T11:39:51+05:30
Occurs mostly in tropics where it is hot. When air is hot is rises and cools and condenses forming rain. If the air is hot enough, it rises very quickly and can cause thunderstorms. This is called Convectional rainfall.
but
orograpic rainfall occurs when air has been blown over the sea and is then forced up over an area of high land. This causes the air to cool and the moisture in the air condenses and rain falls.
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