Which of the following statements is true regarding HIV/AIDS in Africa?

A. The incidence of infection is higher in rural areas than in urban places.
B. It is spread primarily by military personnel, migrant workers, and prostitutes.
C. AIDS spreads quickly across the continent because mosquitoes carry it.
D. Only Southeast Asia has more cases of HIV than Africa south of the Sahara.


B. It is spread primarily by military personnel, migrant workers, and prostitutes.

Environmental & Atmospheric Sciences

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What holds a circularly-moving satellite in orbit while the force of gravity pulls downward toward Earth?

A. An equal and opposite force to that of gravity. B. Nothing but having a sufficient tangential velocity. C. Pulls of the Moon, Sun, and other celestial bodies. D. all of the above

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According to the textbook, if the demographic transition model were to have a fifth stage, which country would most likely be called a stage 5 country?

A) China B) USA C) Germany D) Russia E) Japan

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Which of the following layering in rocks are Tectonic Foliation?

a. Slaty cleavage b. Schistocity c. Gneissic banding d. All of the above e. Both a and b

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Deficiency of which of the following is associated with scurvy?

A) vitamin A B) vitamin B1 C) vitamin C D) vitamin D

Environmental & Atmospheric Sciences