Question

An advertiser attempts to enable target cost-per-acquisition (cpa) bidding but the option isn't available. The most likely reason is that the advertiser:

Answer 1

Explanation:

Solids are similar to liquids in that both are condensed states, with particles that are far closer together than those of a gas. However, while liquids are fluid, solids are not. The particles of most solids are packed tightly together in an orderly arrangement. The motion of individual atoms, ions, or molecules in a solid is restricted to vibrational motion about a fixed point. Solids are almost completely incompressible and are the densest of the three states of matter.