They lived in small hut-like homes. They were hunter-gatherers, so they would grow food and hunt animals surrounding them.
I believe the answer is: Cyclones.
Cyclones happen when a mass of air rotates on strong center within the low atmospheric pressure.
This mass of air is often accompanied by thunderstorms and could be originated from both tropical or subtropical waters.
Answer:
benifits
# we can learn new skills and implement in our country
# import of foreign currency
# make new ideology of markets and agriculture
drawbacks
# people may forget nepalese culture
# they may settle in foreign
# nelalese tradition may eloped