Question

the slope of a water table is also called the _________.
groundwater gradient
aquifer divide
groundwater divide
hydraulic gradient

Explanation:

The slope of the water table is known as the groundwater gradient. The hydraulic gradient is related to the flow of water in porous media considering total head. Aquifer divide and groundwater divide are terms related to the separation of groundwater flow systems rather than the slope of the water table.

Answer:

groundwater gradient