What is the measure of a solution's acidity or alkalinity?
Atomic mass
Dissolved oxygen
Electrical charge
pH
pH
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Endemic species ________
A) have high rates of mutations that lead to large numbers of offspring species B) cause disease C) are invasive species that cause extinction D) are generalist organisms E) are found only in one place on the planet
Scattering occurs more in water than air due to the greater density of water
a. True b. False
Which of the following correctly states the order in which a continental area is transformed into an ocean basin as a spreading center forms?
A. Rifting, doming, spreading, and finally centering B. Centering, doming, rifting, and finally spreading C. Spreading, rifting, doming, and finally centering D. Doming, centering, spreading, and finally rifting
Demographers estimate the human population in 2050 to be between 7.8 and 10.8 billion-a range of three billion. Why is the estimated range so wide?
A. More-developed countries routinely inflate their estimates. B. Projections are made by a variety of organizations. C. Fertility rates are calculated with a standard formula by country. D. Ranges include maximum and minimum estimated casualties of war. E. Statistics regarding drought and famine are constantly shifting.