Which of the following is not a reason for the reemergence of infectious diseases?
A) poverty
B) evolution
C) improved travel
D) improved medicine
Answer: D
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Converting plant sugars into simple sugars creates which biofuel?
A. ethanol B. methane C. propane D. ethane E. butane
Judge the following sentence according to the criteria given below: Attempts to limit crown-of-thorns sea star damage to the Great Barrier Reef made the problem worse BECAUSE divers smashed the crown-of-thorns, which then regenerated new individuals
from various body parts. A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.
What is NOT true about valley and mountain breezes?
A. They are related to clear daytime conditions. B. They occur as a daily cycle of airflow. C. During the day, air flows upslope. D. They occur only in hilly or mountainous areas. E. At night, air flows downslope.
The angle between geographic north and magnetic north is:
a. the inclination b. the declination c. the paleomagnetism d. caused by the movement of lithospheric plates