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1 vote
DDT:

does not decompose quickly
is still used today
kills insects and helpful bacteria
all of the above

User Ashh
by
8.2k points

2 Answers

6 votes
I would go with Kills insects and helpful bacteria because i read a little on it and it seems like it kills insects and helps bacteria.
User Nikola Yovchev
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8.1k points
5 votes
the answer in which is likely to get you a positive score is D.
User Peter Constable
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7.9k points