In spite of having almost three times as many people as the United States, much of the African region is sparsely populated with an average population density only slightly higher than that of the U.S
Indicate whether the statement is true or false
T
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One of the reasons biodiversity is such an important aspect of sustainability is the fact that
a. cycling chemicals maintains a ready supply of new materials for water, soil and food b. it is the ultimate source of energy for plants c. interactions among species provide population controls that limits ultimate population sizes of many species d. it provides water purification and topsoil renewable e. two of these answers are correct
Which of the following is a major disadvantage of nuclear fission-based power plants?
A. The reactors can be used to produce their own fuel. B. The by-products of the fission process are radioactive and have very long half-lives. C. The amount of energy per kilogram of fuel is greater than any other fuel source. D. The power plants are complex, and there are many safety requirements to prevent contamination of the environment. E. both B and D
Primers are involved in which of the following?
A) synthesis of only the lagging strand daughter B) synthesis of only the leading strand daughter C) synthesis of both daughter stands D) None of the above, primers are not involved in the synthesis of either daughter strand.
Cite some reasons for the existence of controversies within science, and carefully distinguish between sound science and junk science
What will be an ideal response?