When it was first proposed, Alfred Wegener's continental drift hypothesis was heavily criticized by earth scientists. What was one of their primary objections to the continental drift hypothesis?
A. Wegener falsified some of his data to better fit his hypothesis.
B. Wegener did not offer an explanation for how the continents move.
C. Wegener couldn't explain the worldwide distribution of fossil species.
D. The continents did not fit together as well as Wegener initially claimed.
Answer: B
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What is a main hazard of this type of volcano?
A) Burning, building collapse, and suffocation from an eruption column and pyroclastic flows
B) Volcanic mudflows and landslides
C) Hot fragments thrown a short distance from the volcano
D) Destruction by moderately fluid lava flows that can flow far from the volcano
He epicenter of an earthquake is the ________.
a.) point where the minimum ground shaking is recorded b.) point of most intense, structural damage associated with ground shaking c.) point where the fault cracking initiates d.) surface location directly above the point where the fault slip initiates
The temperature at which condensation takes place is the ____
a. saturation point b. relative humidity c. dew point d. specific humidity
Suppose a water monitoring well near an old landfill has been found to be contaminated with a cancer-causing chemical. The well is about 5000 meters (about 3 miles) away from a housing development that depends on well water. Assume a slow groundwater flow rate of 10 centimeters (0.1 meter) per day. When might the chemical contaminate wells in the development?
A. 50,000 days B. 5000 days C. 50 days D. 500 days