During the second wave of U.S. environmental policy, in 1872, Congress designated Yellowstone as the world's first __________.
a. national forest
b. wilderness area
c. national park
d. wildlife refuge
Answer: c. national park
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Which of the following is a micronutrient, which without sufficient quantities in a diet can result in goiter?
a. Protein b. Carbohydrates c. vitamin A d. vitamin C e. Iodine
Undertow or backwash is more likely to knock you off your feet than to carry you out to sea. Indicate whether the statement is true or false
Pull-apart rift zones are generally associated with a ________ plate boundary.
a. transform b. divergent c. convergent d. all plate boundaries
As westerly winds blow over a north-south oriented mountain range, the airflow is deflected in such a way that a trough forms on the ____ side of the mountain
a. upwind b. downwind c. both upwind and downwind d. north e. side