What two laws pertaining to the disposal of hazardous wastes were passed in the early 1970s? Describe how the passage of the laws shifted pollution from one part of the environment to another
What will be an ideal response?
"The Clean Air and Clean Water Acts and their subsequent amendments remain cornerstones of environmental legislation. However, their passage in the early 1970s left an enormous loophole. If you can't vent wastes into the atmosphere or flush them into waterways, what do you do with them? Industry turned to land disposal, which was essentially unregulated at the time, as an expedient alternative. Indiscriminate air and water disposal became indiscriminate land disposal. Thus, in retrospect, we see that the Clean Air and Clean Water Acts, for all their benefits in improving air and water quality, also succeeded in transferring pollutants from one part of the environment to another."
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Primary productivity in estuaries is high because ____.?
A) ?light is seasonal and dim B) ?nutrients are abundant C) ?there is no saltwater D) ?there are no primary consumers
Milankovitch cycles
A) explain little of the Pleistocene climate variation. B) explain ancient climate change better than more recent climate change. C) have not yet been tested due to inadequate amounts of data. D) have difficulty in accounting for effects caused by changes in Earth's eccentricity.
Which of the following is not involved in the binding of transcription factors to their gene control sequences?
A) covalent bonding B) hydrogen bonding C) nonspecific ionic interactions D) None, they are all involved.
Scale is
A) the system used by geographers to transfer locations from a globe to a map. B) the extent of spread of a phenomenon over a given area. C) the difference in elevation between two points in an area. D) the relationship between the length of an object on a map and that feature on the landscape. E) the ratio of the largest to smallest areas on a map.