P and S waves are separated on seismograms because:
Answer: They travel at different speeds
You might also like to view...
The aquatic ecosystem with the world's highest net primary productivity per unit area are found in the
A. euphotic zone. B. abyssal zone. C. bathyal zone. D. coastal zone. E. profundal zone.
The removal of a band of trees along a natural contour that allows the forest to regenerate naturally within a few years is called
A. selective cutting. B. seed-tree cutting. C. clear-cutting. D. shelterwood cutting. E. strip cutting.
The most widely known tool to assess the size, distribution and characteristics of a population are
A) censuses. B) geodemographic analyses. C) geographic information systems. D) demographic transitions. E) keeping vital records.
The Gross Domestic Product of some cities is so big that they exceed the GDP of the countries in which they are located
Indicate whether this statement is true or false.