What chemical phenomenon accounts for the elasticity seen in solids?

Question

covalent bond
hydrogen bond
ionic bond
all of the above.

Answer 1

This is not an easy question, if you examine common flexible polymers, especially thermoplastic polymers (hydrogen intermolecular bonds) and polymer blends (molecules incompatable for bonding, so create movable domains of molecules).

But, in general, at least classically, long chain carbon covalent bonds of molecules (especially those that form spiral molecules) are "elastic" as we know them.

Answer 2

Your answer is hydrogen bonds.