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.
State averages 53.4 billion kWh in retail sales per year; Average household energy costs are just $1,551 per year, 23% less than the national average; 38. District of Columbia â 720 kWh Per Month. The average District of Columbia home is significantly smaller than the average home in the United States contributing to low monthly energy costs