Which of the following activities is an environmentally responsible use of power?

A) leaving your TV on when you are not home

B) run your furnace at 72 °F year round

C) drying your clothes on an outdoor clothing line

D) leaving the refrigerator door open as you slowly assess your snack options

dna is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).

the darker peppered moth species were favored due to the fact that the industrial revolution had made all the nearby trees a darker color instead of white.