In this model, which layers are confined aquifers?

Clays are composed of three main type of minerals: kaolinite, illite, montmorillonite.1) Explain the structural differences of three clay minerals.2) Explain which clay mineral absorb water more easily and why

Which of the following is a TRUE difference between unconfined and confined aquifers?     Unconfined aquifers tend to have a higher concentration of dissolved salt than confined aquifers     Unconfined aquifers have lower porosity than confined aquifers     Unconfined aquifers are typically deeper than confined aquifers     Unconfined aquifers tend to take less time to replenish with surface-derived water than confined aquifers