The term "electron cloud" refers to the

The electron cloud is the region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital.

Explanation:

This is from my textbook

“high probability region for an electron in an atom”

Explanation: correct answer shown on castle learning

A solution is mainly composed of two parts the solute and the solvent. The solute is the substance that is dissolve and it has relatively smaller composition with respect to the other substance called the solvent. The solvent is what dissolves the solute it has the higher composition. Therefore, the solvent is the ethyl alcohol.