Hello There!
A major source of calcium and sodium in oceans is weathering and erosion of rocks.
Option D.
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- Hannah ❤
<span>Its location would be described as being at a particular locus on chromosome #2, perhaps in relation to the centromere or "on the short arm" of chromosome #2. If it is located on chromosome #2 in one fruit fly, that gene will also be on chromosome #2 of other fluit flies of the same species.</span>
The energy came from the sun.
The sun increase the temperature on every water surface on the earth which make it transform from liquid to gas, and eventually from cloud.
When the clound condensed, it will fall on top of the geological surface in the form of rain and some of it will fallen to the river and eventually came back to the sea to complete the cycle.
Explanation:
The two main parts of a triglyceride lipid are glycerol and fatty acids.
Nucleus! I hope I helped :)