Using Map T-1, the “Hawaii, Hawaii,” topographic map (scale 1:250,000; contour interval 200 feet), calculate the gradient of Mauna Loa (19°28'17"N, 155°35'41"W) along line AB, from the 5000', contour (near Point A) toward the summit. On the edge of a piece of paper measure out a distance of 10 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.
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Lord Kelvin calculated Earth was 20-400 million years old. Why was he wrong?
a. He didn’t account for the erosion of sediments. b. He didn’t account for the presence of salt deposits. c. He wrongly assumed the oceans were initially fresh. d. His thermometer was incorrectly calibrated.
e. He didn’t know Earth had an internal heat source.There is a mountain at 10,000 feet and one next to it at 12,000 feet. Which has more potential energy?
A) The mountain at 12,000 feet. B) The mountain at 10,000 feet. C) They have the same potential energy, because weight is more important than height. D) You can't tell; the weight wasn't given.
Has the frequency and intensity of hurricanes increased in recent years? Why or why not? Why might these patterns continue?
In the thermohaline circulation systems, surface water is ________
A) saltier and colder B) less salty, less dense, and warmer C) driven by winds from north to south D) warm and dense E) cold and dense