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02-11-2017
Biology

contestada

What is a major source of calcium and sodium in oceans?
a.air pollutants
b.gases from active volcanoes
c.minerals dissolved in aquifers
d.weathering and erosion of rocks?

Respuesta :

Аноним Аноним

05-11-2017

The answer is D. Weathering and erosion of rocks.

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