World Geography
The lines on a map connecting regions of equal rainfalls are called as which among the following?

Isotherms
Isocons
Isobars
Isohytes

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

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

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