If Bob pushes for an hour against a stationary wall, he does no work
A. on the wall.
B. at all.
C. both of these
D. none of the above
Answer: A
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In the long term, sustainable agriculture will require ________
A) using less fertilizer and decreasing the production and use of fuels made from crops B) increasing meat consumption in developing countries C) using more fertilizer and increasing the production and use of fuels made from crops D) expanding the type of industrial agriculture presently used in developed nations to Africa and Southeast Asia
Groundwater migrates from areas of low pressure to areas of high pressure
Indicate whether this statement is true or false.
Which of the following is NOT a benefit of GMO crops?
A. Disease resistance B. Drought resistance C. Pollen containing the engineered gene spreading to other crops that do not contain the engineered gene, making them stronger. D. Herbicide resistance E. Pest resistance
What is the approximate diameter of the rim of the Okmok Caldera?
The question is based on Map T-2, the “Umnak, Alaska,” topographic map (scale 1:250,000; contour interval 200 feet), Map T-21b, a satellite image; and Figures 35-3 and 35-4, a shaded relief map and a stereogram showing the Okmok Caldera (53°25'33"N, 168°07'38"W) on Umnak Island in the Aleutian Islands. What will be an ideal response?