Ecologists have identified ____ megadiversity countries that contain two thirds of all species.
A. 17
B. 24
C. 34
D. 44
E. 54
Answer: A
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What type of seismic waves undulates in a wavelike motion and causes the most property damage?
a. Body b. Primary c. Surface d. Secondary e. Density
The Mohorovicic discontinuity or Moho was discovered based on
A) chemical differences between felsic and mafic rocks. B) the S-wave shadow zone. C) a sharp change in seismic velocities. D) mineralogical data from drill holes.
The primary method used in preventing the growth of large, destructive hailstones is to inject a thunderstorm with large quantities of?
a. ?silver iodide. b. ?ice crystals. c. ?dry ice. d. ?hydrophobic nuclei. e. ?hailstone embryos.
The Russian taiga or boreal forest is the largest forest on earth, accounting for 20% of all forested lands on Earth. This means the Russian taiga is larger than the Amazon tropical rainforest
Indicate whether the statement is true or false