Some planktonic marine organisms produce a tiny droplet of oil to ________ density and ________ buoyancy
A) decrease; decrease
B) decrease; increase
C) increase; increase
D) increases; decrease
E) There is no relationship between density and buoyancy.
B
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The world's population of urban settlements exceeded that of rural settlements for the first time in human history in ________
A) 1990 B) 1995 C) 2000 D) 2004 E) 2008
The loss of biodiversity most severely affects
A) developed nations of the world. B) the wealthiest people in the world. C) the poorest people in developing nations. D) the production of food in the developed world.
Which of following best describes the major industries of Sacramento, California?
A) Government, agriculture, food processing, and aerospace B) Tourism, government, farm machinery, and dairy C) Dairy, agriculture, government, and tourism D) Aerospace, farm machinery, food processing, and government
Uplift of the ____ has altered atmospheric currents and the Asian monsoon
a. Himalayas b. Rocky Mountains c. Appalachian Mountains d. Ural Mountains