Factories, sewage treatment plants, and oil wells are ________ sources of water pollution.
A. Tertiary pollutant
B. Point
C. Secondary
D. Primary
E. Nonpoint
Answer: B
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Full-cost pricing could potentially mitigate many of the detrimental impacts associated with resource waste, pollution and other environmental problems. Why isn't full-cost pricing widely used? What could be done to overcome these problems?
What will be an ideal response?
Why is the sofar layer efficient for sound travel?
A) Refraction causes the sound energy to remain within the layer. B) The density of the sofar layer traps the sound energy. C) Sound energy bends away from layers of lower sound velocity. D) Temperatures and salinity conditions are homogeneous.
CHP conserves energy in industrial buildings by
A) charging batteries when power demand drops. B) drawing on the heat of the earth to make electricity. C) installing solar panels on the top of power plants. D) using the waste heat generated to warm buildings.
What kind of geologic feature is shown in this photograph?
A. desert pavement B. desert varnish C. contact metamorphism D. unconformity E. None of these choices are correct.