Which of the following is one of the major pollutants of groundwater?
A) agricultural chemicals
B) radon
C) acid rain
D) treated sewage from cities
E) pathogenic microbes
Answer: A
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A certain lake in the arid west contains an endangered species of fish. The legal status of this fish required water diversions out of the river feeding the lake to be decreased substantially
About 10 years following this decree, the declining cottonwood forest and canopy along the riverbanks was noted to be recovering. This situation illustrates the potential effectiveness of a. the species approach to sustaining biodiversity b. the ecosystem approach to sustaining biodiversity c. cottonwood trees as part of all stream recovery programs d. water as a solution to species decline e. fish as indicator species
Despite its vast size, the ocean will likely not be able to provide enough food to alleviate future malnutrition and
starvation in the world. a. True b. False
Choose the option that puts the minerals in order of formation from low-grade metamorphism to high-grade metamorphism
A) garnet, feldspar, muscovite B) chlorite, garnet, biotite C) biotite, muscovite, staurolite D) chlorite, feldspar, staurolite
Dry climates are by far the most extensive climate over land
Indicate whether the statement is true or false