The bottom layer of soil is called . A. erosion
B. weathering
C. bedrock
D. igneous

Which of the following types of nonrenewable fuel sources requires the storage of radioactive waste? a. coal b. nuclear c. solar d. oil

List 3 factors commonly used to select the location of a city

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