Which of the following current migration flows is the LEAST significant in terms of total numbers of people?
A) from Asia to Europe
B) from Africa to Europe
C) from Asia to North America
D) between and among Asian countries
E) from Latin America to North America
Answer: B
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In the case of sanitary landfills, the cost of disposing of wastes is ________ as technology provides safer alternatives.
A. Slowly increasing B. Staying relatively stable C. Sharply decreasing D. Sharply increasing E. Slowly decreasing
What type of mineral is neither an energy resource nor a metallic resource, but still has commercial value?
a. construction mineral b. economic mineral c. silicate mineral d. industrial mineral e. rare earth mineral
Which pie graph correctly shows the percentage of elements by volume in Earth’s troposphere?
"Voting with one's wallet" by trying to buy only products and services that do not have harmful impacts on terrestrial and aquatic biodiversity is a key strategy for applying the principle of sustainability.?
Answer the following statement true (T) or false (F)