________ would have the largest capacity to naturally remove sewage pollutants.

A(n) ________ is a closed depression formed by melting of an ice block buried in a moraine or outwash plain.

A ________ forms when stagnant, glacial ice melts after being buried by drift.

Which of the following glacial features would typically be found in close proximity to each other?

Which of the following areas is underlain by karst topography?

________ are smoothly tapered, elongated hills of till shaped by an overriding, continental ice sheet.

Which of the following best describes how geysers erupt?

A ________ forms when stagnant, glacial ice melts after being buried by drift.

Which of the following areas is underlain by karst topography?

What term denotes the percentage of open space or voids in a material?