The biodiversity of traditional vegetables (including carrots, asparagus, and tomatoes) that had been disappearing over the 20th century is now being recovered and promoted by
A) bioprospectors.
B) biopirates.
C) seed savers.
D) ecotourists.
E) land grabbers.
Answer: C
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Without gravity, a cannonball fired upward at 45° would follow a straight-line path. Due to gravity, however, in 3 s it is below the straight line a distance of
A. more than 20 m. B. 10 m. C. 20 m. D. 15 m.
Anticlines and synclines are like
A. strike-slip faults because they rub together. B. wrinkles in a rug when you push the ends of the rug toward one another. C. the stretched places in a piece of taffy when you pull its ends. D. the compression in a tennis ball when it hits a racket.
Rocks such as limestone and granite cannot be groundwater reservoirs. Indicate whether the statement is true or false
Which of the following will float on water?
A) decane B) hexane C) octane D) all of them