The figure above shows an upper-level 500 mb weather map drawn over North America. Where do you expect the highest wind speeds to occur?
a. no difference between 1 and 2
b. 2
c. 1
b. 2
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What molecule loses a proton to form the hydroxide ion, OH??
A) the oxygen molecule, O2 B) the water molecule, H2O C) the hydrogen peroxide molecule, H2O2 D) the hydrogen molecule, H2
Rift zones where a volcano spreads in different wedge-shaped sections are characteristic of ____
a. ?cinder cones b. ?stratovolcanoes c. ?resurgent caldera d. ?shield volcanoes e. ?lava domes
A laboratory analysis of index minerals in a metamorphic rock indicates that temperature and pressure were decreasing as a specific mineral was growing. Why would the conditions for mineral growth change?
A. The rock was being uplifted to the surface. B. Hydrothermal fluids were invading the rock. C. A blob of magma was moving toward the rock. D. The rock was being carried downward by subduction. E. The rock was being folded by differential stress.
Carbon dioxide
A) is a noble gas. B) is a solid that contributes very little to atmospheric and climatic change. C) is a greenhouse gas that may hold the key to important climatic changes. D) has become so thick that certain insects can no longer fly but are forced to crawl.