Tall smokestacks were effective ways of
A. Eliminating the effects of pollution
B. Cleaning up air pollution
C. Decreasing pollution
D. Displacing and dispersing pollution
E. Concentrating pollutants for easier cleanup
Answer: D
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When food is irradiated with gamma rays from a cobalt-60 source, does the food become radioactive? Why?
A. No. The gamma rays do not have sufficient energy to initiate the nuclear reaction in the atoms of the food. B. Yes and No. Although the gamma rays initiate the nuclear reaction, the radioactivity does not show up until the food is ingested. C. Yes. This is why irradiation with cobalt-60 is no longer approved by the FDA. D. Yes. However, the radioactivity resulting is well below the danger level established by the FDA.
Low pressure systems form over heated landmasses in the summer while high pressure systems form over the ocean
Indicate whether the statement is true or false
What is GPS? Give several examples of its utility in physical geography
What will be an ideal response?
A stationary _____ in the earth's mantle creates volcanic chains of high islands
a. biodiversity hot spot b. geologic hot spot c. subduction zone d. plate boundary e. atoll