21.   The solid earth is the source of many natural resources whose extraction can present environmental problems.

22.   My father once had me believing that the earth was a Mobius strip, not a sphere.

23.   Rain is when the earth is television.

24.   And the planet earth is within the reach of gravitational pull and things on the earth are attracted by the moon.

25.   Although Monday the earth is farther from the sun in the northern hemisphere summer, that is not always the case.

26.   And dinosaur unearthings are proving the earth is hundreds of times older than fundamentalists believe.

27.   But for viewers desperate to divine new meaning from Moscow, the earth is unlikely to move.

28.   By weight, the earth is mostly iron.

29.   But, then, there once was a theory that the earth is flat.

30.   Camellias seem to like gardens along the waterway, where the earth is more acidic and better draining than in those gardens with heavy gumbo for soil.