What do sediments increase pollution in an aquifer?

Explanation:

Contamination also can occur from naturally occurring mineral and metallic deposits in rock and soil. For many years, people believed that the soil and sediment layers deposited above an aquifer acted as a natural filter that kept many unnatural pollutants from the surface from infiltrating down to groundwater.

It causes the aquifer to clog up, and then when it finally releases, the dirt goes along with it.

Explanation:

Hope this helped! :)

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

we would need to see the picture to answer it