Which sentence describes air pollution?
a. soot and dust is released into the air from the sm...
Biology, 14.01.2020 22:31 princessmnicole2
Which sentence describes air pollution?
a. soot and dust is released into the air from the smokestack of a
power plant.
o b. an audience watches a documentary film about the threat of
global warming.
o
c. an old car is dumped into a local stream, where it sits and rusts.
d. all the trees in a forest are cut down and removed, and no new
trees are planted.
Answers: 2
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Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different
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