1. Evaporite minerals, like salt, are common in Death Valley National Park, Cali
ID: 236349 • Letter: 1
Question
1. Evaporite minerals, like salt, are common in Death Valley National Park, California. Where did the salt come from?
a.The elements that create the salt (Na and Cl) were already present in the gypsum and limestone deposits in the area.
b. The sodium and chlorine that make up common salt (NaCl) were washed into Death Valley by streams eroding the rocks of the surrounding mountains.
c.The Na and Cl were blown in from the west (Pacific Ocean).
d. Both Na and Cl were created by the radioactive decay of more complex minerals found in the rocks of the mountains surrounding Death Valley.
Explanation / Answer
B
Rivera carry all the soluble minerals to sea and if dry conditions prevail then evaporate begins to form. Here in death valley evaporate form from a playa lake
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