Which mineral reacts readily with cool, dilute hydrochloric acid to produce visible bubbles of carbon dioxide gas?
A) quartz
B) plagioclase
C) calcite
D) gypsum
C
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Differentiate between a hypothesis and a theory
What will be an ideal response?
How far away is the lightning when you see a lightning stroke and then, 15 seconds later, hear the thunder?
A. 72 km B. 24 km C. 8 km D. 5 km
Which of the following is suggestive that mitochondria may have been an ancient entity?
A) Mitochondria produce energy B) Some exceptions to the genetic code are found in mitochondrial DNA. C) Mitochondrial DNA is passed only through the female line. D) None of the above is correct.
Proton-translocating ATPase is incapable of doing which of the following?
A) transporting protons from the intermembrane space to the matrix B) transporting protons from the matrix to the intermembrane space C) causing the hydrolysis of ATP to ADP D) None, proton-translocating ATPase can do all of these.