Answer: two elements and three atoms
Explanation:
An element is the simplest substance and hence cannot be broken down using chemical reactions.
Magnesium chloride 
is an ionic compound formed by the transfer of electrons from element magnesium (Mg) to element chlorine (Cl) where Magmesium forms a cation 
by losing two electrons and chlorine forms an anion 
by gaining electron.
There are 3 atoms in Magnesium chloride which include one atom of magnesium (Mg) and two atoms of chlorine (Cl).
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Your answer would be shorter wavelength and equal speed !
Hello
Your answer is D. They will not affect availability of wind.
Wind turbines use already windy skies to their advantage; making energy. The wind goes through the turbine, then comes out. It is not changed in any way, and no wind is lost in the process.
Hope this helps!
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The answer would be C. hope this helped.
