How do you find reaction forces on a wall bracket?

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of

Which of these is the best way to manage a natural resource

Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not