Identify four regions of the electromagnetic spectrum that astronomers use when observing objects in space.

Which transition by an electron will release the greatest amount of energy? oa ob oc od

Why are graphs useful when interpreting data

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.