What causes the earth’s magnetic field? a. currents in the earth’s liquid-metal outer core b. the mineral composition of the earth’s crust c. molten material in the mantle d. magnetic particles located at the earth’s poles question resources\

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98