Which of the following is not a renewable resource?
A) The sun beating down on a rain forest
B) Plants, such as bamboo and rice, growing in moist environments
C) Oil reserves, buried deep below the surface of the ground
D) Water flowing through a dam
C
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What is the principle behind wetlands-based sewage treatment systems?
A. To mimic natural processes in a series of tanks filled with aquatic plants. B. To use high strength chemicals to disinfect large amounts quickly. C. To let nature take care of it by dumping raw sewage in rivers. D. To simply pour sewage into existing, unlined natural wetlands.
It can be said that coastal habitats are actually
a. increasing in area b. disappearing up to 10 times faster than tropical forests c. maintaining a solid level of biodiversity d. disappearing at the same rate as tropical forests e. declining in many areas but rebounding in others
Free convection is the mixing process related to:
A) buoyancy. B) conduction. C) subsidence. D) drying.
Which of the following factors will not play a role in the way rivers flow?
A. The underlying geologic structure of faults and or folds. B. The speed with which the water is flowing. C. The resistance to erosion of the materials that make up the channel. D. Dams along a stream channel. E. All of these choices are correct.