How do geologists know how to determine the stability of minerals?
What will be an ideal response?
Answer: Many minerals are stable over limited ranges in temperature and pressure. Changes in these two variables cause reactions that result in the formation of new mineral or minerals. Laboratory experiments conducted with different minerals at measured temperatures and pressures reveal the specific conditions under which common metamorphic minerals are stable.
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Which of the following is data (meaning actual observation) rather than an interpretation?
a) recent volcanism at Yellowstone is related to the process that caused the low topography b) there is an area of low topography southwest of Yellowstone National Park c) volcanism in Yellowstone overlies an area of hotter-than-average mantle d) the low topography southwest of Yellowstone formed when North America moved over a hot spot e) All of the above are actual observations
What evidence did the Hubble Space Telescope provide to support the nebular theory of solar system formation?
A) proof of the spinning of our solar system B) proof of the expansion of our solar system C) pictures of other spinning stars D) pictures of other stars with dust and gas
What is the main source of oil that reaches the ocean?
A) ?offshore drilling leaks B) ?runoff from city streets and dumping of waste oil C) ?improper nearshore refining methods D) ?oil tanker spills
____ sediments may be carried to deep water at a stream outlet into a standing body of water
a. Large b. Fine-grained c. Biological d. Bed-load