What kind of volcano is most closely associated with pyroclastic flows?
A) Shield
B) Cinder cone
C) Composite cone
D) Caldera
Answer: C
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Using Map T-2, the “Umnak, Alaska,” topographic map (scale 1:250,000; contour interval 200 feet), calculate the gradient of Mount Vsevidof (53°07'35"N, 168°41'16"W) along line CD, from the 1000' contour (near Point C) toward the summit. On the edge of a piece of paper measure out a distance of 2 miles using the graphic map scale, and then determine the elevation change over that distance.
In this problem, you will compute the gradients of Mauna Loa in Hawai‘i, Mount Vsevidof in Alaska, and SP Mountain in Arizona. (You may also determine the elevation changes and distances needed to calculate these gradients by using Google Earth™.) The recommended starting point and distance to measure are given for all three volcanoes.
A radiosonde ____
A) measures particulate matter in the atmosphere B) monitors surface weather conditions in remote areas C) measures the vertical distribution of atmospheric temperature, pressure, and humidity D) uses radio waves to determine the height of the ionosphere
What would cause ocean circulation to slow down?
a. a continental orogeny b. warmer tropical regions and colder polar regions c. cold tropical regions and warm polar regions d. increased underwater volcanism e. equal temperatures at the poles and equator
A weather forecast for up to a few hours (usually not more than 6 hours) is called a(n) ____________________ forecast, or ____________________
Fill in the blank with correct word.