Which soil conservation technique involves plowing and planting crops in rows across the slope of the land rather than up and down?
A. terracing
B. contour planting
C. alley cropping
D. windbreaks
E. hydroponics
Answer: B
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________ is the process that converts sediments into a sedimentary rock
A) Diagenesis B) Cementation C) Imbrication D) Lithification
For b–d below, write the letter on Figure 19.1 at the appropriate location. The first location (a), has been marked as an example for you. You will need to use Figure 19.1 and the maps of world climates and biomes (found inside the back cover and outside the back cover of this manual) to find and mark:
a) a location that was a desert (under the subtropical high) but is now a rain forest (tropical). Done for you. b) a location that would have been glaciated (Arctic or Antarctic) but is now tropical c) a location that was tropical but is now in the midlatitudes d) a location that was a rain forest (tropical) but is now a desert (under the subtropical high)
Dehydration of which type of alcohol can never result in a mixture of products?
A) 1° B) 2° C) 3° D) None, mixtures can be obtained from any of these.
Which is more polar, a sulfur-bromine (S-Br) bond or a selenium-chlorine (Se-Cl) bond?
A. A sulfur-bromine bond should be more polar because of a smaller difference in effective nuclear charge. B. A sulfur-bromine bond should be more polar because of a greater difference in effective nuclear charge. C. A selenium-chlorine bond should be more polar because of a greater difference in effective nuclear charge. D. A selenium-chlorine bond should be more polar because of a smaller difference in effective nuclear charge.