Desalination can be used to provide fresh water. This produced water can be used for drinking as well as irrigational purpose. The byproduct of desalination is the creation of salt. The correct option among all the options that are given in the question is the first option or option "a".
Answer: 3) "<span>both north and south of the equator " .
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<span>Unpredictable floods, small & defenseless region, and limited natural resources.</span>