IGCSE O Level Biology Practice Test 178

Pollution: Causes of Pollution MCQs (Multiple Choice Questions) PDF Download - 178

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Pollution: Causes of Pollution MCQ with Answers PDF Download: Quiz 178

MCQ 886:

Gaseous pollutants include

biological decay
forest fires
volcanic eruptions
all of above

MCQ 887:

Branches of leaf veins end in

upper epidermis
lower epidermis
mesophyll cells
none of others

MCQ 888:

Cell surface membrane does not support in all of others but

osmosis
leakage of water to the soil
leakage of salts and amino acids to the soil
reducing the cell surface: volume ratio

MCQ 889:

Combination of glucose (C₆H₁₂O₆) and fructose (C₆H₁₂O₆) molecules result in

maltose
sucrose
galactose
lactose

MCQ 890:

In context of respiration, inspired air has

less oxygen
more water vapors
less carbon dioxide
a high temperature

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