Salt domes are frequently associated with hydrocarbon deposits
a. True
b. False
True
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These deep-sea holothurians (sea cucumbers) and brittlestars obtain food by
1.eating prey that swim past.
2.eating mud and digesting the bacteria and organic matter in it.
3.migrating vertically to the euphotic zone each night.
4.autotrophic means – they photosynthesize.
Bioassessment uses ________ to determine water quality
A) living organisms B) dissolved oxygen C) conductivity D) pH E) turbidity
Volcanic craters and impact craters can often look similar. Which of the following statements is correct is distinguishing between volcanic and impact craters?
A. Volcanic craters are often characterized by the presence of shocked quartz and melted rocks on the crater floor. B. Impact craters are often bowl-shaped and contain breccia and shocked quartz. C. Volcanic and impact craters cannot be distinguished by their physical characteristics, though there are differences in their chemical composition. D. Both volcanic and impact craters are bowl-shaped and contain breccia, but only impact craters contain melted rocks on the crater floor.
Separating lead, copper, zinc, and iron from the sulfur atoms produces sulfuric acid as a by-product. Why is this a problem?
A) Sulfuric acid is useless and yields no profit. B) Sulfuric acid, when released into the atmosphere, combines with vapor to produce acid rain. C) Sulfuric acid is extremely profitable, but not in the form it is produced through this process. D) Lead, copper, zinc and iron are wasted in producing sulfuric acid, which is more profitable.