Polar stratospheric clouds are thought to contribute to the problem of ____
a. global warming
b. ozone destruction
c. acid rain
d. photochemical smog
e. radio wave interference
ANSWER: b
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In photosynthesis, carbohydrates are broken down to CO2 and water when they combine with atmospheric oxygen
Indicate whether the statement is true or false.
Geographer Derwent Whittlesey identified 11 main agricultural regions where divided by their importance to either developing or developed countries
Which agricultural region, that is important to the developing countries, covers the most area in the southern hemisphere? A) Grain B) Shifting cultivations C) Dairying D) Plantation E) Mediterranean
In the hierarchical system of classification, species are defined as ________
A) a major subdivision of an order containing one or more genera and their subgroups B) a major subdivision of a family containing one or more related groups C) a major subdivision of a phylum or a division containing one or more orders of their subgroup D) an overall category containing organisms that share very similar fundamental structures and functions E) a group of individuals that are able to interbreed with one another, producing fertile offspring
In terms of the GII, most African countries have
A) rates far below the United States and Western Europe. B) rates that exceed the United States and Western Europe owing to African investment in centers of higher learning. C) rates that are greater than the United States but less than Europe. D) core-periphery models. E) weak national economies.