The firing on fort sumter on april 12, 1861, was the first armed conflict of
a. revolutionary war
b. civil war
c. seven years' war
d. mexican war

Bottle deposit programs are one way to encourage higher recycling rates. explain how they work

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

:calculate the sum of the interior angles of a 13-sided polygon.