Which of the following boxes represents a suspension?
A. Only A represents a suspension.
B. Only B represents a suspension.
C. Only C represents a suspension.
D. Each of these could represent a submicroscopic portion of a suspension.
Answer: D
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Harry Hess proposed the theory of seafloor spreading, the creation of new oceanic crust
at mid-ocean ridges. Indicate whether the statement is true or false.
It took more than 100 years for the world’s population to double from 1 billion to 2 billion. How long did it take for the world’s population to increase from 4 billion to 5 billion?
a) Fewer than 15 years as the result of exponential growth b) Half the time of the first doubling, about 50 years c) More than 100 years; 1 billion people are added each 100 years d) The world’s population has not yet reached 5 billion
Which of the following is an assumption of neoclassical economics?
A) Resources are finite. B) All citizens deserve just and equal treatment. C) Long-term effects and planning are important. D) Growth is good. E) External costs and benefits are valuable.
A poleward-moving ocean current is considered a warm current
Indicate whether the statement is true or false