IGCSE O Level Biology MCQs – Mock Test 169

Atmospheric Pollution Quiz with Answers PDF Download – Test 169

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Download the "Atmospheric Pollution Quiz" App: Nitrates (NO₃^-1) and phosphates (PO₄^-3) reach underground water with; MCQ with answers: fertilizers washed away by rain water, acid rains, decomposition of organic compounds by aerobic bacteria, and decomposition of organic compounds by anaerobic bacteria. Learn Effects of Human Activity on Ecosystem Questions and Answers, Apple iBook to download free chapter for biology practical education.

Atmospheric Pollution Quiz – Mock Test 169 PDF Download

MCQ 841: Nitrates (NO₃^-1) and phosphates (PO₄^-3) reach underground water with:

acid rains
fertilizers washed away by rain water
decomposition of organic compounds by anaerobic bacteria
decomposition of organic compounds by aerobic bacteria

MCQ 842: In excretion process ultrafiltration retains:

proteins only
platelets only
water
proteins and platelets

MCQ 843: Mammals do not produce:

salivary amylase
catalase
pancreatic amylase
Cellulose

MCQ 844: Process of using natural bacteria in mining industry is known as:

biodegradation
bio genomics
bioremediation
bioleaching

MCQ 845: From the root hair cells, the water travels through the:

pith cells
epidermis
cuticle
cortex

IGCSE O Level Biology Quiz App & eBook – Atmospheric Pollution Admission Tests

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