The kind of plastic with the highest recycling rate is

A. Polystyrene (PS)
B. High-density polyethylene (HDPE)
C. Polyethylene terephthalate (PET)
D. Polypropylene (PP)


Answer: B

Environmental & Atmospheric Sciences

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One of the most general conclusions to be drawn from plate tectonic theory is that ____.

a. the Earth is gradually losing heat b. the Earth's geography has continually changed c. the Earth is slowly expanding d. the Earth is slowly shrinking e. all the ocean basins are gradually enlarging

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What is the distinctive form of a language that is associated with different regions?

A) lingua franca B) language group C) dialect D) official language E) language family

Environmental & Atmospheric Sciences

What does "centripetal" mean?

A) false force B) center-seeking C) inward pull D) downward push

Environmental & Atmospheric Sciences

The depth below which there is no wave motion is called the

A) wavelength. B) wave base. C) wave period. D) wave height.

Environmental & Atmospheric Sciences