How is the solubility of a gas affected by temperature?
A. As temperature goes down, the solubility goes down.
B. As temperature goes up, the solubility stays the same.
C. As temperature goes down, the solubility goes up.
D. As temperature goes up, the solubility goes up.
E. both A and B
Answer: C
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A number of hydroelectric dams are now scheduled for dismantling. What is the main reason for this?
a. Their structure has weakened. b. New findings about the potential for large earthquakes have been discovered. c. Cheaper and cleaner sources of electrical power have been found. d. Environmental concerns must be addressed before a dam can be relicensed. e. The demand for irrigation water has decreased.
The amount of land and ocean needed to provide the resources for one person and absorb his/her wastes defines the
A) carbon footprint. B) demographic impression. C) environmental footprint. D) resource capacity.
In San Francisco's Marina district in 1989, some fill underwent permanent deformation and settling, and some formed slurries as underground water and loose sediment flowed like a fluid in a process known as ________.
A. avulsion B. plasticity C. slumping D. creep E. liquefaction
Symbiosis involves ________ between members of different species
A) competition B) cooperation C) interbreeding D) equilibrium E) predatory behavior