Nobel laureate Paul Crutzen estimates that at least 3 million people die each year from diseases triggered by
A. Water pollution
B. Air pollution
C. Mosquito-borne illnesses
D. Exposure to radiation
E. Cigarette smoking
Answer: B
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Most of Northern Africa's tourists come from
A. the United States B. Europe C. China D. Japan
A trough-shaped fold away from the fold axis is
A) called a syncline. B) called an anticline. C) plunging. D) tilted.
The subsidence mitigation program being implemented for Venice, Italy is elegant because of its
simplicity and low-cost. Indicate whether the statement is true or false.
The earth's radiative equilibrium temperature is:
a. the temperature at which the earth is absorbing solar radiation and emitting infrared radiation at equal rates. b. the temperature at which the earth is radiating energy at maximum intensity. c. the average temperature the earth must maintain to prevent the oceans from freezing solid. d. the temperature at which rates of evaporation and condensation on the earth are in balance.