Which of the following human actions is most apt to result in a long term increase in soil pH?
A) application of NH4- containing fertilizers
B) emission of gases from automobiles
C) application of unlimed sewage sludge
D) irrigation with high sodium salt-containing waters
E) application of farm manure
D
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Red-winged blackbirds are common and gregarious birds
a. True b. False Indicate whether the statement is true or false
President Carter's malaise speech was notable for
A. demonstrating his close ties to the American people and the mood of the country. B. predicting the economic downturn of the 1970s. C. forecasting the future problems the nation would face if it did not address its dependency on foreign oil. D. chiding Americans for falling into a moral and spiritual crisis in their quest to acquire material goods. E. inspiring Americans to become more involved in their communities and local government.
Clutch plate travel can be checked with ________
A) a feeler gauge B) a vernier caliper C) a micrometer D) a ball gauge
Brass is a widely used alloy of ____.
A. copper and zinc B. copper and tin C. phosphorous and bronze D. copper and bronze E. none of the above