Asilver nugget has a mass of 30 g and a volume of 3 cm^3^. what is its density?

a. 90 g/cm^3^

b. 33 g/cm^3^

c. 27 g/cm^3^

d. 10 g/cm^3^

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.