The answer is A, biogeochemical cycles.
Forces along the horizontal
force that caused initial velocity in x-dir
force that caused final velocity in x-dir
forces along the vertical
force that caused initial velocity in y-dir
force that caused final velocity in y-dir
force of gravity
A formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.
equilibrium
Heat transfers from a body with high temperature to a body with low temperature until both bodies are in the same temperature.