What kind of energy does a mechnical wave carry?

Which distinctive feature of the notre dame cathedral allowed it to accommodate its large stained glass windows? a. its barrel vaults b. its flying buttresses c. its quadrant arches d.its square bays

6. why did louis xvi call a meeting of the estates-general in 1789? how long had it been since such a meeting had been called?

Capitalism competed with dominance in the twentieth century communism merchantilism free enterprise feudalism