Will polar climates eventually become tropical?

Yes

Explanation:

individually the factors that affect Arctic Climate are important, but energy can be added to the atmosphere from the ocean and land or can flow, into the soil and feeds river and lakes, and high will eventually drain to the ocean

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.