The difference between the cost to produce a commodity and its price in the marketplace is ________
A) profit
B) opportunity cost
C) discount rate
D) economic value
E) economy of scale
Answer: A
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An increase in the number of people living in the area included in the Investigation would most directly threaten the sustainability of
A) the local drinking water supply. B) the type of bedrock. C) the temperature of the global ocean. D) regional atmospheric circulation.
An earthquake measures 5.0 on the Richter scale. Therefore
A) the ground shakes 10 times as much as it does during a magnitude 4.0 earthquake. B) 10 times as much energy is released as during a magnitude 4.0 earthquake. C) 10 times as much damage is done to buildings as there is in a magnitude 4.0 earthquake. D) The earthquake is 10 times deeper compared to a 6.0 earthquake.
Currently desiccation is a more serious threat to the Caspian Sea than pollution
Indicate whether the statement is true or false
Which of the following is true if an amino acid is incorrectly paired with a tRNA?
A) This is not important since the complex will be very unstable. B) This is not important since the anticodon will not match up with its codon. C) This is not important since the incorrectly placed amino acid can be removed later. D) This can be a serious problem since the anticodon will match up with its codon even if the tRNA is carrying the wrong amino acid.