From which layer of the atmosphere do particles of air escape into space? A.)exosphere

B.)troposphere

C.)mesosphere

D.)stratosphere

What are the basic input of iron and steel industry

In the spring of 1989, thousands of protesters gathered in tiananmen square in beijing, china. they rallied around a plaster statue that resembled the statue of liberty which they called “the goddess of democracy.” these protestors were seeking a) united states assistance in gaining better health care. b) economic reforms which would allow more chinese exports. c) the boycott of the future olympic games scheduled for beijing. d) political reforms to allow more freedom of speech and political representation.

Why does the united states constitution require that a national census be taken every ten years?