You are asked to explain the earth's magnetic field. which is the best reply? a.) the earth's magnetic south is similar to the north pole of a magnet. b.) the earth's core has a strong magnetic charge similar to the south pole of a magnet. c.) the earth's geomagnetic south is similar to the south pole of a magnet. d.)the earth's magnetic charge is not centered at either pole; it varies based on location.

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.