So less diffusion of oxygen into the blood Why is the volume of oxygen that has to be absorbed and the volume of CO2 that has to be removed large in mammals? (2)
A kilowatt-hour is the electrical energy consumed in one hour at the constant rate of one kilowatt. The average household in the United States uses about 8,900 kilowatt-hours of electricity each year.. Power is defined as the rate at which work is done or energy is consumed.
The average electricity use of the households who participated in the survey in 2014 was 5,817 kWh per year. This is approximately 12.5 per cent less than those who participated in 2011. Average household electricity consumption has decreased by 12.5% from 2011 to 2014.