Earth’s early atmosphere was very rich in oxygen (O2)
a. True
b. False
False
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Why is ocean climate (and the entirety of Earth, for that matter) divided into latitude parallel zones that become progressively colder from equator to pole?
a) Winds are stronger at higher latitudes, so cooling is greater at higher latitudes. b) Precipitation and cloud cover increase with latitude, causing higher latitudes to be cooler. c) Greater amounts of ice occur at higher latitudes, making it cooler at higher latitudes. d) Cold ocean deep water returns to the surface at high latitudes, causing cooling. e) The average solar radiation (sunlight) striking the surface declines from equator to poles.
In what region of the Sun are most of X-rays generated?
A. the inner core B. the chronosphere C. the photosphere D. the corona
Individual restraints when using common-pool resources are necessary to prevent
A) increases in the maximum sustainable yield. B) the tragedy of the commons. C) a shift from productive to consumptive use of resources. D) shifts in the carrying capacity of natural populations.
Of the following places in Australia and Oceania, which was the first to be settled by humans?
A) Australia B) New Zealand C) Fiji D) Hawaii E) Cook Islands