Name the four periods of ice advance in order, beginning with oldest.

At which point on the diagram do convection currents occur to drive plate movement?

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.

The body paragraphs in an informative essay should include clear examples. a thesis statement. restated evidence. a clear direction.