Which of the following Resistors A, B, C or D. would use the least power? Make your claim, give evidence and explain your reasoning. You may use math to support
your claim. Your answer should be in paragraph form using complete sentences.

PLEASE EXPLAIN :D

What is created when solids,liquids,an gases mix with one another

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

The ozone hole appears in antarctica during