Pollution: Causes of Pollution MCQ App | IGCSE O Level Biology MCQ e-Book PDF
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IGCSE O Level Biology MCQs – Mock Test 178

Pollution: Causes of Pollution MCQs with Answers PDF Download – Test 178

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Pollution: Causes of Pollution MCQ – Mock Test 178 PDF Download

MCQ 886: Gaseous pollutants include:

  1. biological decay
  2. forest fires
  3. volcanic eruptions
  4. all of above

MCQ 887: Branches of leaf veins end in:

  1. upper epidermis
  2. lower epidermis
  3. mesophyll cells
  4. none of others

MCQ 888: Cell surface membrane does not support in all of others but:

  1. osmosis
  2. leakage of water to the soil
  3. leakage of salts and amino acids to the soil
  4. reducing the cell surface: volume ratio

MCQ 889: Combination of glucose (C6H12O6) and fructose (C6H12O6) molecules result in:

  1. maltose
  2. sucrose
  3. galactose
  4. lactose

MCQ 890: In context of respiration, inspired air has:

  1. less oxygen
  2. more water vapors
  3. less carbon dioxide
  4. a high temperature

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