You observe a fish-eating osprey bird with its chicks near Everglades National Park. What commonly used pesticide nearly caused the extinction of this and other large predatory bird species in the 1970s?
A) Malathion
B) Round Up
C) DDT
D) Pyrethroids
C
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Which type of agriculture is most characteristic of more-developed countries?
A. plantation agriculture B. traditional intensive agriculture C. traditional subsistence agriculture D. industrialized agriculture E. sustainable agriculture
Which of the following statements best summarizes the state of the world's food supply by 2050 if the IPCC findings are accurate?
A. 200-600 million people could face starvation. B. Bumper crops will occur in most of the world. C. Expect increased production of food in tropical areas. D. Most of the people in the U.S. will starve to death.
The distance between corresponding points on any two successive waves i known as the
A) electromagnetic spectrum. B) Kelvin. C) Pascal. D) wavelength. E) frequency.
What is the minimum temperature at which a liquid gives off sufficient vapor to ignite briefly if provided with a source of ignition?
a. Fire point b. Flash point c. Ignition temperate d. Flammable range