Cambridge Programs Online Courses

O Level Biology Quizzes

O Level Biology MCQs - Complete

Pollution: Causes of Pollution Quiz Questions PDF p. 178

Practice Pollution Causes of Pollution quiz questions and answers, pollution causes of pollution MCQs with answers PDF 178 to practice O Level Biology mock tests for online college programs. Practice Effects of Human Activity on Ecosystem quiz questions with answers, pollution causes of pollution Multiple Choice Questions (MCQ) for online college degrees. "Pollution: causes of pollution Quiz" PDF Download: human respiration, molecular biology, cell biology, mineral salts, pollution: causes of pollution test prep for online college bachelor degree.

"Gaseous pollutants include", pollution causes of pollution Multiple Choice Questions (MCQ) with choices forest fires, biological decay, volcanic eruptions, and all of above for free online college courses. Practice effects of human activity on ecosystem questions and answers to improve problem solving skills for ACT prep classes.

Quiz on Pollution: Causes of Pollution


Gaseous pollutants include

biological decay
forest fires
volcanic eruptions
all of above


Branches of leaf veins end in

upper epidermis
lower epidermis
mesophyll cells
none of others


Cell surface membrane does not support in all of others but

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


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



In context of respiration, inspired air has

less oxygen
more water vapors
less carbon dioxide
a high temperature
Download Free Apps: