The troposphere
A) is thickest at the equator.
B) is a region of relatively constant temperature.
C) ends at an elevation of about 18,000 to 20,000 feet.
D) lies above the mesosphere.
E) is derived from the Latin word for air.
A
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Use the map-view diagram of a group of tectonic plates to answer the question. Note: Not all features are shown for all boundaries.
Which of the cross sectional diagrams shown below best illustrates the plate boundaries across the line A-B?
A. Diagram a B. Diagram b C. Diagram c D. Diagram d
A diagram of the flow of energy through an ecosystem resembles a pyramid. This explains why
A. not every organism at one level of the food chain is eaten by an organism at the next level of the food chain. B. animals need energy for maintenance. C. there is more grass than zebras, and more zebras than lions, on the African savanna. D. some ecosystems have a higher primary productivity than others.
The buoyant rising of heat is called ________
Fill in the blank(s) with the appropriate word(s).
Why is crushed limestone used in the remediation of sulfide waste rock?
a. The limestone forms a highly impermeable barrier. b. The limestone neutralizes the acid that forms. c. The limestone converts to marble and can be sold. d. Native grasses and plants grow directly out of the limestone. e. The sulfide waste rock will oxidize into limestone.