Many of the world's deserts are found near 30° latitude because ____
A) the intertropical convergence zone is located there
B) of sinking air found near the polar front
C) of the convergence of the prevailing westerlies and the northeast trade winds
D) of the sinking air of the subtropical highs
D
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Which of the following best represents a negative tipping point?
A) Logging trees and preventing their regrowth in a forest B) Allowing natural wildfires to burn wherever they occur C) Allowing resilience mechanisms to function after a wildfire D) Relying upon bordering systems to repopulate a region that has been flooded
Heavy metals can quickly move through ecosystems because they
A) are soluble in water as ions and as a few other compounds. B) quickly dissolve in the fats of animals. C) quickly become incorporated into sugars and starch. D) easily clump together and bind tightly to soil compounds.
Which of the following describes the effect of raising the temperature of an exothermic reaction which has not yet reached equilibrium?
A) The rate of reaction slows and less product is produced. B) the rate of reaction slows, but more product is produced. C) the rate of reaction speeds up, but less product is produced. D) The rate of reaction speeds up and more product is produced.
What was blackbirding?
A) exotic birds decimated by European species B) Kanaka people kidnapped and enslaved C) colonial policies against Aboriginal people in Australia D) missionary influence on local leaders and law E) none of the above