All map projections introduce at least some distortion because
A) it is impossible to represent a three-dimensional surface on a two-dimensional plane perfectly.
B) the best mathematical algorithms used in map projections have not been discovered yet.
C) the Earth is not a perfect sphere.
D) the Earth's orbit around the Sun is not perfectly circular.
A) it is impossible to represent a three-dimensional surface on a two-dimensional plane perfectly.
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Red blood cells and white blood cells are produced in
A. spongy bone. B. red bone marrow. C. yellow bone marrow. D. compact bone.
Data indicate that the present rate of freshwater consumption in most developed countries is ________
A) only a problem in areas not on the coast B) unsustainable C) irrelevant, as water is not currently limiting D) sustainable for the foreseeable future E) increasing groundwater storage and decreasing surface water storage
Which of the following is NOT one of the three most populous countries in the Asian region?
a. China b. India c. Thailand d. Indonesia
Which of these are part of “sustainable development”?
a. Finding ways to promote social justice b. Finding ways to promote economic well-being c. Finding ways to promote environmental quality d. All of the above are correct.