What technique would help you to distinguish between two heavy identical-looking spheres
of the same weight, one solid and the other
hollow?

harry byrd declared organized resistance by southern states would prevent racial integration.

the answer for apex is the lowest

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide