If solar illumination contains 800-1000 w/m^2 and a solar cell array has an efficiency of 9.5%, what area of solar cells is needed to obtain enough electrical power for a typical home. a typical home uses 1 kw?

I believe the area of solar cells needed to obtain enough electrical power for a typical home would be (1000 W) / (900 W/m^2) / (0.12) = 9.3 m^2.

it's filtration, but this is an assumption so my apologies if i got this

elements make up everything, and they combine to make compounds.

the answer is c