On average, a wind turbine can produce 36,000 kilowatt-hours per day when the blades are constantly rotating. A typical household in the United States consumes 10,000 kilowatt-hours per year, and there are approximately 125 million households in the United States. If all wind turbines operate with a capacity factor of 25 percent, how many would be needed to provide energy for all homes in the United States?

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?