What scientific evidence exists for the Universes origin? What observations support this theory?

Awatershed is a piece of land that drains water into a particular stream, lake, or river. which of the following factors often negatively impacts the water quality in a watershed? a.) wetlands b.) pollution c.) irrigation d.)rainfall

The point where two air masses meet is called a

Why did macarthur want to invade china? why did truman oppose this?