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.
Here is an example of our usage, for the 12 months between 27th May 2008 and 27th May 2009: 8,587 kWh Peak usage. 4,441 kWh Off Peak Usage. This is a total of 13,028 kWhs per year, (35.7 kWh per day) compared to the Australian national average Electricity consumption of 6,570 kWhs per year (18 kWh per day).