What is the largest environmental problem stemming from agriculture?

A) air pollution
B) soil erosion
C) insect control
D) sunlight


B

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Steel joists are braced against instability by

A) horizontal bridging members at the top of the joists. B) horizontal bridging members at the bottom of the joists. C) A or B. D) A and B. E) none of the above.

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In a beam bridge, the end supports of a single span are called _____.

a. amendments b. trusses c. abutments d. piers

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When changing tire sizes, what five things do you need to consider about the replacement tire?

What will be an ideal response?

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As a spectator sport, horse racing is relatively small compared to football.

Answer the following statement true (T) or false (F)

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