PETE (code 1 ) and HDPE (code 2 ) plastics
A) can be recycled and made into many useful products.
B) are biodegradable.
C) unlike most plastics, are not made from petroleum.
D) cannot be incinerated with other organic MSW because of their dioxin content.
A
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Human population is currently following a J-shaped growth curve. Which of these hypothetical factors would maintain this growth pattern and prohibit the growth curve from turning into an S-shaped one?
A. New medicines to stop the spread of disease B. Better farm machinery C. New fossil fuel supplies D. Improved factory fishing boats
Circulation, as used in a spatial context, has to do with interconnections by transportation and communication of goods, people, ideas, and capital among places and cultures
Indicate whether the statement is true or false.
Which of the following rocks is composed of the smallest sedimentary clasts?
A. shale B. sandstone C. conglomerate D. breccia
A(n) apron of fallen rock fragments called ________ is generally found at the base of a slope affected by rockfall.
A. grus B. talus C. loess D. fluvial E. alluvial