According to the ideas of william smith, which rock layers are the same age a. layers with different fossils b. layers made of the same chemicals c. layers of equal density d. layers with similar fossils.

Select the correct answer from each drop down menu. among these figures figure and blank have the same volume. 1 a c e 2 b d

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.

When geographers describe how two places are related to each other spatially, they are describing a. where the places are located in relation to one another b. what kinds of natural environments are around each place c. how each place is changing over time d. what kinds of cultures are in each place