The depth at which the cellular respiration rate equals the photosynthetic rate is referred to as the ________ for photosynthesis
A) carbonate depth
B) epipelagic depth
C) euphotic zone
D) compensation depth
E) productive zone
D
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Which of the following statements about fusion is the most accurate?
A. Fission releases more energy than fusion. B. The mass of the reactants is less than the mass of the products. C. A nuclear fusion will always release energy. D. Overcoming the strong nuclear force results in the release of a large amount of energy. E. The mass of the products is less than the mass of the reactants.
Which of the following is NOT considered an unconventional fossil fuel?
a. Methane hydrate b. Oil shale c. Oil sands d. Coal
Permanent settlements existed prior to beginning of recorded history around ________ years ago
A) 500 B) 1000 C) 2000 D) 4000 E) 5000
How can certain composite volcanoes (stratovolcanoes) become significantly life-threatening without
actually erupting or by undergoing only a minor eruptive event local to its summit? What will be an ideal response?