An example of a caldera is:
a. Mount St. Helens, Washington.
b. ParicutÃn, Mexico.
c. El Chichon, Mexico.
d. Krakatau, Java.
e. Crater Lake, Oregon
E
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An S-curve showing the growth in the percentage of adopters is useful in helping to explain
A) the spatial diffusion of an innovation. B) connectivity in topological space. C) the transferability of energy resources. D) the relationship between relative and absolute distance. E) the impact of sense of place on outsiders.
Dipole-induced dipole forces of attraction exist between water and gasoline, and yet, these two substances do not mix because water has such a strong attraction for itself. Which of the following compounds might best help to make these two substances mix into a single liquid phase?
A. the molecule in the middle because when the salts mix into the water, it will help separate the water and decrease the attraction for itself B. the molecule on the far left because the O-H bond is polar, and the carbon and hydrogen bonds are nonpolar C. The molecule on the right will form attractions with the polar ends of the water, allowing the gasoline a chance to mix with the water. D. All of these molecules would be equally effective at increasing the mixing of gasoline and water.
Pesticides have a positive benefit in terms of public health because fungi, insects, and noncrop plants can contaminate crops with many natural toxins
Indicate whether the statement is true or false
If the mass of Earth somehow became half its original mass with no change in its size, your weight would
A. remain the same. B. decrease to one-half. C. decrease to one-quarter. D. none of the above