The shaded areas and diffusion arrows on the above world map indicate the most prominent regions of the
A) first agricultural revolution.
B) second agricultural revolution.
C) third agricultural revolution.
D) Green Revolution.
E) Industrial Revolution.
A
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_____ have estimated that up to 25% of the world's current animal and plant species could be gone by 2050, and 50% could be gone by the end of the century
a. Edward O. Wilson and Stuart Pimm b. Philip Levin and Donald Levin c. Norman Myers and Aldo Leopold d. Donald Levin and Stuart Pimm e. Gas and oil company executives
What is the difference between a storm surge and a seiche? What are the behaviors and causes of each? What will be an ideal response?
At the 2008 Olympics the Jamaican runner Shelly Ann Fraser ran the 100. meter dash in world record time of 10.78 seconds. What is this speed in miles per hour? [1 mile = 1.609 km]
A) 2.08 mph B) 4.81 mph C) 20.8 mph D) 48.1 mph
Which of the following is the most cleanly burning fossil fuel available, producing the least carbon dioxide per unit of energy released?
A) nuclear energy B) coal C) kerosene D) natural gas E) petroleum