Tapping Deep Aquifers for Water Sources Creates Several Concerns

question 89

Multiple Choice

Tapping deep aquifers for water sources creates several concerns.Which of the following is not one of these?

• A) They are nonrenewable on a human time scale.
• B) Little is known about their geological or ecological impacts.
• C) Many cross country borders without international agreements.
• D) Most are heavily polluted.
• E) The costs of tapping these are unknown.

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