________ elements make up 98% of the Earth's crust.
A. Twenty
B. Eight
C. Ninety-two
D. Fourteen
E. Two
Answer: B
You might also like to view...
Discuss the problems that animals had to overcome to adapt to the land environment. How did they overcome these
problems? Provide specific examples of these adaptations. What will be an ideal response?
Why is sediment yield an important consideration in a discussion of water supplies?
A) Sediment yield affects the amount of water that is available. B) Water resources and sediment resources are closely intertwined. C) Sediment is a common water pollutant. D) Soil erosion restricts water flow to streams.
Areas where plates slide past one another, usually ar right angles to a seafloor spreading are
A) areas of seafloor spreading. B) divergent boundaries. C) transform boundaries. D) convergent boundaries.
Scarp formation is often associated with
A. creep. B. rockfalls. C. slumps. D. rockslides.