Which of the following is the type of force that causes rocks to be extended, or pulled apart?
A. tension
B. gravity
C. shear
D. transverse
E. compression
Answer: A
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Cities such as Atlanta and Charlotte are located in which North American physiographic region?
A) the Atlantic coastline B) the Piedmont C) the Rocky Mountains D) the Gulf Coast E) the West
Answer the following statement(s) true (T) or false (F)
1. Agricultural production in Europe is high, but the number of farms continues to decline. 2. Because poorer land may be retired from production first, the decline in production is not always proportional to the amount of land retired. 3. Airbus is to the aerospace industry what the European Union is to the economy and politics of Europe. 4. Yugoslavia is still the name for the remaining parts of that country: Serbia and Montenegro. 5. The main role of the Mafia is as a way of doing business through family connections.
How is coal produced?
A) with natural gas B) the same way oil is produced C) Obsidian and water are mixed together and buried for hundreds of years. D) Plant organic matter is compressed into rock under elevated heat and pressure during burial.
Which of the following is a common, approximate value for the angle of repose of rock particles?
a. 3? b. 13? c. 33? d. 73? e. 133?