What force ultimately spins a turbine to generate electricity in a concentrated solar power (CSP) system? O steam from water boiled by captured solar energy
O solar radiation particles
o increasing temperatures causing parts in a turbine to move spontaneously
O wind spinning turbine blades

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.