O Level Biology MCQs – Certification Test 1429

Recycling: Waste Disposal Trivia (Question 1429) – App & e-Book Download

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MCQ 1429: Conserving metals may decrease:

environmental pollution only
waste disposal only
minerals in the crust
environmental pollution and waste disposal

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Free Recycling Waste Disposal Trivia App: Learn Recycling Waste Disposal Notes, O Level Biology Trivia App, and 9th Grade Biology Trivia App to strengthen science knowledge.

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