Pest outbreaks are natural, but how have they been increased by intensive agricultural practices?
What will be an ideal response?
Intensive agricultural practices mean the use of pesticides that over time, select for pesticide-resistant insects. The movement toward growing large acreages of monocultures means that if a pest strikes, it can possibly wipe out huge crops globally and not just locally.
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After the British defeat at Yorktown
A. the fighting continued for more than a year. B. the war ended within a month. C. the French withdrew their assistance as it was no longer needed. D. King George III decided to end the struggle. E. Spain finally entered the war on the U.S. side.
Which tissue is softer than bone and solidifies as the bone matures?
a. Muscle c. Cartilage b. Ligaments d. Tendons
____ help engineers determine how much earth must be moved and how much land must be purchased when a road is to be built.
A. Contour drawings B. Profile-curved line drawings C. Cut-and-fill drawings D. Plan and profile drawings
What type of electrical device is a relay?
A) A control B) A relay is not an electrical device C) A combination load and control D) A load