Which of the following is useless to animals leaving at great depths, due to the high pressures there?
A. a swim bladder
B. a swim bladder full of gas
C. a swim bladder full of lipids
D. a large mouth
E. fins
Answer: B
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What is the measure of a solution's acidity or alkalinity?
A. Atomic mass B. Dissolved oxygen C. Electrical charge D. pH
If the DIRECTION OF DIP of a bed is east, its STRIKE DIRECTION must be:
a) due west b) north-south c) North 45° East d) North 45° West e) dip direction of a bed is not related to the strike direction
Alfred Wegener noticed that mountains differed in age, composition, and structure on both sides of the Atlantic, which supported his theory of continental drift.?
Indicate whether the statement is true or false
Why is cyanide heap leaching used to extract gold from some deposits?
A) The gold concentration is too low to be extracted using traditional methods. B) It is safer than other methods. C) Gold can only be extracted from finely disseminated deposits. D) It produces fewer mine tailings than other methods.