U5T1-T2 Review

What is one way ocean currents can impact the environment?

• They can impact climate

• They can change the color of the sky

• They can make mountains taller

• They can cause earthquakes

What is an aquifer?

• A layer of rock or sediment that holds groundwater

• A type of cloud formation

• A type of ocean current

• A weather phenomenon

What is the difference between a point-source and non-point source of contamination?

• Point-source contamination comes from a single, identifiable source, while non-point source contamination comes from multiple, diffuse sources

• Point-source contamination is always less harmful than non-point source contamination

• Non-point source contamination is easier to control than point-source contamination

• Point-source contamination only occurs in urban areas

What is an aquifer?

• System of flowing water through porous rock

• Underground water level

• Layer of impermeable material

• Surface water in a river

What does the term "water table" refer to?

• The top of a mountain

• Underground water level

• The surface of a lake

• The bottom of a river

Which material allows water to flow through it in an aquifer system?

• Permeable material

• Impermeable material

• Solid rock

• Clay

Why is an impermeable material important in the formation of an aquifer?

• It prevents water from escaping the aquifer

• It increases the flow of water

• It allows water to move freely

• It forms the surface of the land

Which of the following best describes point source contamination?

• The pollutant comes from a small, defined area

• The pollutant comes from a wide area

• The pollutant is always natural

• The pollutant is always from farmland

Which of the following is an example of non-point source contamination?

• Oil spill from a tanker

• Gasoline storage tank leak

• Pesticides on a farmland

• Septic tank leakage

What is a key difference between point source and non-point source contamination?

• Point source contamination comes from a wide area, while non-point source comes from a small area

• Point source contamination is always natural, while non-point source is always man-made

• Point source contamination comes from a small, defined area, while non-point source comes from a wide area

• Non-point source contamination is always from oil spills