World Geography
The hot, dry wind on the east or leeward side of the Rocky mountains (North America) is called

the Sirocco
the Chinook
the Harmattan
the Loo

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World Geography
The main objective of multi-purpose river projects are

flood controls and making rivers navigable
extension of irrigation facilities by constructing dams to store surplus water during the rainy seas
All of these
power generation by constructing hydro power stations

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World Geography
The term 'flora' in the context of natural vegetation refers to

assemblage of plant species living in association with each other in a given environmental frame
a large tract covered by trees and shrubs and its administration for assessing economic benefits
plants of a particular region or period, listed by species and considered as a group
role played by species of animals in the maintenance of ecological balance

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