Larger alkenes have lower boiling and melting points, so they are liquids or waxy solids at room temperature. The largest alkenes should have the lowest or highest boiling and melting points?
lowest

The closer to the surface an aquifer is, the easier it is to get the water. An aquifer near the surface will provide easier or harder access to its water than one further down?
easier

Increasing air temperature decreases atmospheric pressure. If the air temperature falls during a heat wave, what is likely happening to the atmospheric pressure It will increase or It will decrease?
It will increase

The bigger the waves are and the more sediment they carry, the more erosion they cause. A part of the beach is rough, and another part is very smooth. The waves on the rough part of the beach are probably larger or smaller?
smaller