Which two eras ended with mass extinctions?

its Paleozoic and mesozoic right?

What effect did the Royal Navy's strategy of impressment have on the War of 1812? A. It increased the size of the Royal Navy. B. It promoted a system for naval battles in the Atlantic Ocean. C.

Explain how north america became the location where east and west came together

Explain the effects of Nazi policies towards the Jews in the years 1933 to 1945.

Why did Portugal begin to explore the coasts of South America and Africa in the 1400s?

According to the acticle, why did the U. S wait some tine before entering World War 1

What is the common American dance grouping that Africans do not traditionally use?.

Did the Romans get their wool from Spain or from Italy?

A submarine descended y meters. It was then 900 M below sea level if y = 200, how far below sea level was the submarine to start with?

The republicans emerged as a powerful political party in the

A brief overview of segregation • In which parts of the USA was segregation a feature of eve- ryday life?