How might scientists be able to use fossils to infer that the climate of the central united states was a lush subtropical forest millions of years ago?

What are the dimensions of the cross section that passes through the points a, f, g, and d?

When barack obama was running for president, at a campaign stop he tried to bowl, something he isn't very good at. the media loved it because he threw a gutter ball while they were all watching. this is an example of:

The process of a material going through a change of state from a gas to a liquid