The Big Rock Mining company decides to build a mine shaft in South Africa that extends 3.5 km beneath Earth's surface. What approximate temperature would a person experience at the bottom of the mine shaft? (Hint: use the average accepted value for geothermal gradient.)
A. 88°C
B. 25°C
C. 110°C
D. 75°C
Answer: A
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Ancient ________ were sovereign cities where ________ delineated the boundaries of the city. Periodically one city in Mesopotamia would gain military dominance over many others, and a(n) ________ would form
A) kingdoms, maps, province B) kingdoms, bodies of water, empire C) city-states, markers, province D) nation-states, walls, nation E) city-states, walls, empire
The principle of lateral continuity states that sedimentary beds are deposited horizontally with
the oldest beds on the bottom. Indicate whether the statement is true or false.
What is one of the newest techniques employed to measure tides?
a. Using simple drogues b. Using pressure-sensing transducers c. Using drift bottles d. Using variations in Earth's magnetic field
What is the vertical relief (the difference between the highest and lowest elevations) between the volcano observatory at Uwekahuna Bluff on the rim of the crater and the floor of the crater at the 3524-foot bench mark? Note the tick marks on the contour lines.
What will be an ideal response?