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What is the likely cause of the blockage in the following scenario?

A plumber, cleaning out recently blocked lines, indicates that there are roots blocking the sewer system. There are no trees immediately over the sewer line and have not been for years; there is only a small group of trees on the side of the property, several yards from the line.

taproots
lateral roots
aerial roots
primary roots

User Damiqib
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1 Answer

1 vote
the answer is 2nd one
User Dheeraj Kumar
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