In many cities, wastewater travels through sewer lines to be processed at a wastewater-treatment plant. The treatment plant uses many methods to
break down materials in wastewater and make sure materials are safe before
release. Which of the methods used during treatment is meant to kill diseases in materials in wastewater?
A. Burying of solid waste
B. Aeration of liquid waste
C. Heating of liquid waste
D. Settling out of solid waste

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.

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully

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