Textures of igneous and clastic sedimentary rocks differ because:
a. clastic textures generally include coarser particles than igneous rocks
b. clastic textures are characterized by transported particles
c. clastic sedimentary particles are composed of interlocking grain aggregates
d. clastic textures originate by crystallization from solutions in a depositional environment
b
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Aluminum metal undergoes the same basic corrosion process that iron does, yet it does not decompose as rapidly. Why?
A. The aluminum oxide does not flake off like rust and acts as a protective layer. B. The aluminum is galvanized, which prevents oxidation. C. Aluminum is harder to reduce than iron. D. The aluminum oxide product undergoes a reduction to produce aluminum metal. E. Aluminum is harder to oxidize than iron.
The best solution for pollution is always total cleanup.
Answer the following statement true (T) or false (F)
Subduction occurs
A) divergent plate boundaries. B) along collision zones between two continents. C) along collision zones between continental and oceanic plates. D) at sea floor spreading zones. E) above mantle hot spots.
Which of the following is true of evapotranspiration in North America?
A) The lowest amounts occur in the Southwest and southern Texas. B) The lowest amounts occur in northern Canada. C) The highest amounts are received in the Mid west. D) The highest amounts are received in the U.S. Pacific Northwest.