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Which of the following materials are least porous?

Loosely packed gravel

sorted sand and rock

unsorted sand and rock

large pebbles and boulders

Which of the following materials are least porous? Loosely packed gravel sorted sand-example-1
User Parsifal
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1 Answer

4 votes
Large pebbles and boulders due to the space between the particles.
User Kostas Drak
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