In bowen's reaction series, what three elements increase in concentration when a magma becomes more ultramatic? select one: o a. si, o, ca o b. fe, mg, and ca c. si, o, and fe d. fe, mg, and na e. si, o, and k

b. Fe, Mg, and Ca

Explanation:

In an ultramafic magma, there is concentration of Fe, Mg and Ca in the melt. An ultramafic magma is one with less amount of silica content. Ultramafic magma are usually rich in iron bearing minerals, magnesium and calcium. These minerals are usually the first to crystallize out in a melt when rocks are heated.

mercury

explanation:

mercury is the least dense because of its size