On sunny days, why do hot-air balloons suddenly rise when they drift over a wide road or parking lot made of black asphalt?
What will be an ideal response?
The air warmed by the black surface is rising.
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Some drugs, such as taxol and Tamiflu that are currently used with great success to treat cancer and viral infections,
A) are derived from wild plants. B) represent the intrinsic value of wild species. C) are derived from genetically modified cultivars that combine together traits of several plants. D) were discovered as mutations in the development of new cultivars of wheat.
Which solution listed below has not been considered, at one time or another, for the handling of highlevel
nuclear waste? a. Continue the present tank storage. b. Put it into a convergent plate boundary c. Put it in containers on the Arctic ice shelf d. Put it into a salt mine or dome. e. Put it is deep chambers in granite
If we recycled only half of the materials that could be recycled of the total MSW of the United States, we could reduce the total volume of MSW by about
A) 5%. B) 10%. C) 20% D) 35%.
How do point and non-point sources differ? Give one example of each.
What will be an ideal response?