Theresa measured 15.00 ml of water. she must have used a

a. flask that had markings every 25 ml.
b. beaker that had markings every 20 ml.
c. transfer pipet that had markings every 0.1 ml.
d. graduated cylinder that had markings every 1 ml.

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.