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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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MannyD MannyD
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7 years ago
Many communities are beginning to use sludge on farm fields.  What is the biggest problem with using sludge on fields?
A) The sludge must be dried before it can be applied to the fields.
B) Wet sludge may irrigate the crops.
C) Sludge is often contaminated with toxic metals that could be taken up by plants.
D) Sludge is a source of nutrients and humus.
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Chemistry for Changing Times

Chemistry for Changing Times


Edition: 13th
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Chemistry for Changing Times, 13th Edition
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BarryOBarryO
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7 years ago
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. Smiling Face with Open Mouth

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MannyD Author
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7 years ago
Thanks
hmonier
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Yesterday
You make an excellent tutor!
Shuqin
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2 hours ago
Good timing, thanks!
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