Which type of plate boundary would be most likely to lead to above-ground volcanic activity?

Convergent plate boundary most likely lead to above-ground volcanic activity.

Explanation:

At convergent plate boundary two or more tectonic plates collide, which causes one layer to slide beneath the other. Earth's gravity pulls the lower layer into the mantle. Oceanic plate can sink beneath the continental plate and vice versa. This process of subduction leads to above ground activities such as earthquakes and volcanic eruptions.

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms