The principle of original continuity says that a. in a sequence of sedimentary beds, the oldest is on the bottom. b. rock containing inclusions is younger than the inclusions. c. sedimentary layers began as continuous expanses of sediment. d. the feature doing the cutting is younger than the feature it cuts.

What is associated with mid-ocean ridges?

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

8. is a technique that uses the images from several telescopes to produce a single image. a. reflection b. interferometry c. radiation d. refraction