Is weathering a constructive or deconstructive process?

Using the periodic table, complete the table to describe each atom. type in your answers

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

What produces wave a)sound b) heats c)transfer of energy d)vibrations