What would a person drilling a well most likely reach immediately after drilling through the unsaturated zone

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

What advantages does a pedigree have over a written passage?

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.