IGCSE O Level Biology Certification MCQs – Mock Test 7

Deforestation and Pollution Notes Questions with Answers PDF Download – Test 7

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Deforestation and Pollution MCQs – Mock Test 7 PDF Download

MCQ 31: Consequences of water pollution include:

discharge of untreated sewage
burning of fossil fuels
loss of habitat
climatic changes

MCQ 32: Carbon dioxide (CO₂) concentration is measured in blood through:

biosensors
receptors in lungs
receptors in esophagus
receptors in blood vessels in neck

MCQ 33: The plant can be de starched in:

14 hours
24 hours
42 hours
48 hours

MCQ 34: All is true for local anesthesia, but,:

that it causes local numbness
it causes a loss of sensation in the area being injected
contains Cocaine
cause gastric ulcers

MCQ 35: Characteristics essential for sensitivity includes:

well developed brain
specialized sense organs
well developed nervous system
all of above

Deforestation and Pollution Notes App & eBook – IGCSE O Level Biology Certification Guide

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