During a January storm in Vermont, a highway truck crashed and spilled three tons of rock salt onto the side of the road, covering grasses and tumbling down to a creek
Learning about this accident, a scientist wonders about the environmental consequences. This kind of salt naturally occurs in the soil. According to the U.S. Environmental Protection Agency's definition of pollution, this spill would be considered as a A) nontoxic, non-polluting spill of a natural substance.
B) pollutant that should be cleaned up as much as possible.
C) nutrient supplement with no environmental harm expected.
D) problem better suited for the CDC.
B
You might also like to view...
Scientists usually experiment by collecting data
A. only from other researchers and comparing their results. B. from as large a sample as possible. C. from one source only. D. from their relatives.
Normal urine has a pH in which of the following ranges?
A) 1.5 to 3.5 B) 3.5 to 5.5 C) 5.5 to 7.5 D) 7.5 to 9.5
Which of the following is NOT true about tides?
(a) They are produced solely by the gravitational pull of the sun. (b) They are complex daily oscillations in sea level. (c) They are influenced by the size, depth, and topography of ocean basins. (d) They are influenced by shoreline configuration and latitude.
How long ago was the last major peak of glaciation?
A) 5,000 years B) 20,000 years C) 75,000 years D) 115,000 years