What happens to levels of polar wildflower pollen in sediments during an ice age?
A. decreases
B. stays the same
C. increases
Answer: C
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Antiviral drugs against HIV have been developed to do which of the following?
A) inhibit the protease B) inhibit the reverse transcriptase C) prevent the virus from entering the host's cells D) all of the above
The Himalayas were formed by geological uplift from the Indian Plate moving into the:
A) Australian Plate B) Arabian Plate C) Eurasian Plate D) Pacific Plate E) none of the above
What is leachate?
A) methane gas that leaks from sanitary landfills B) a mineralized liquid generated by water flow through landfills C) hazardous waste left over from biochemical degradation of chemical wastes D) an ash by-product of waste incineration
According to the United Nations High Commission for Refugees (UNHCR) in 2014, the largest number of refugees were forced to migrate from ________, which have seen a great deal of armed conflict in recent years
A) Vietnam and Indonesia B) Afghanistan and Syria C) Sudan, South Africa, and Colombia D) Mexico and Colombia E) Ethiopia, Nicaragua, and Somalia