How long do low-level radioactive wastes have to be stored at disposal sites in the U. S. according to current federal guidelines?

A. 5 years
B. 50 years
C. 500 years
D. 5000 years


Answer: C

Environmental & Atmospheric Sciences

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What type of foliation results from the parallel alignment of abundant, coarse-grained, mica flakes in a metamorphic rock?

A. Phyllitic structure B. Schistosity C. Slaty cleavage D. Gneissic banding

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The close-fitting mosaic of pebbles, cobbles, and boulders covering the floor of many deserts and

semiarid regions is called:a. ventifacts. b. desert pavement. c. longitudinal dunes. d. yardangs. e. barchan dunes.

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What describes plant or animals species that are found in one location or region but nowhere else?

A. endemic B. native C. isolated D. local E. pandemic

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