Carlos makes maps of mountains and other landforms. Which branch of science is most closely related to Carlos's work?
O A. Life science
B. Physical science
C. Earth science
D. Computer science

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?