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2014-06-04T09:17:02+05:30
1-cuts and wounds should not come in contact with soil because the bacteria and micro organisms enter into the body through cuts and wounds and cause infection.

2-nitrogen is already a part of air naturally, rainfall .
meaning of anthropogenic is originating in human activity
sources of anthropogenic nitrogen are pesticides, animal manures and commercial fertilizers.

3-pasteurization is the only method / process found by louis pasteur and it is named after his work on pasteurization process.
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