The invention and rapid diffusion of more productive agricultural techniques is called ________, that involves introduction of ________ and the expanded use of ________
A) mass production, hydroponics, herbicides
B) the Agricultural Revolution, new tractors, advanced watering
C) mass production, higher-yield seeds, fertilizers
D) the Green Revolution, higher-yield seeds, fertilizers
E) the Green Revolution, new tractors, inter-cropping
Answer: D
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This model was developed to explain the opening and closing (creation and destruction) of oceanbasins:a
phylogeny d. Grenville orogeny b. parallel evolution e. Wilson Cycle c. Ediacaran fauna
A ________ stream has an interwoven network of small channels separated by much loose debris
A) meandering B) competent C) high-capacity D) thalweg-less E) braided
Worldwide, about ________ storms grow to named tropical cyclones status each year
A) 25 B) 50 C) 75 D) 100 E) 125
In 2000, how much solid waste did the average person in the United States produce?
A. 220 metric tons per year B. 770 kilograms per year C. 190 metric tons per year D. 840 kilograms per year