O Level Biology MCQs – Certification Test 916

Molecular Biology Quiz (Question 916) – App & e-Book Download

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MCQ 916: Ozone depletion can be prevented with:

use of scrubbers in factory chimneys
acidic waste is treated with alkalis
fossil fuels are used in factories
lower consumption of chlorofluorocarbons-based products

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Molecular Biology Quiz App & e-Book – O Level Biology Learning Guide

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