Why B and not A

Started by Shemya-Key · started 2021-04-06 02:20 · last activity 2021-06-09 18:29 · 2 replies

I chose the answer A because the question specifically asks "under what best condition" and it directly says that impermeable rock is. Could you explain why B is the answer and why A is wrong?

Replies

  1. NS1 · 2021-04-11 00:16

    Same question^
  2. Maria-Marin · 2021-06-09 18:29

    If you look the passage, it says that the rock must be permeable, so it can absorb the wastes, therefore, answer choice B is better because it satisfies the condition of having a permeable layer and an impermeable one.

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