Using what you just observe, explain why clouds and precipitation contain freshwater even though much of the water vapor comes from oceans and seas

Most of the water doesn't come from the ocean, it comes from fresh water sources

Explanation:

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metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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