SANCHO’S CHEMISTRY LESSON NOTES FOR ORDINARY& ADVANCED LEVEL
Pollution refers to the introduction of harmful or undesirable substance to the environment
(i.e. the act of making air, water and soil unfit for use). Or
Pollution is the contamination of Earth’s environment with materials that interfere with human
health, the quality of life, or the natural functioning of ecosystems (living organism and their
physical surroundings).
Pollutant is any substance or species produced either by a natural source or by human activity
and produces adverse (unpleasant) effect on the environment. In addition, pollutant is a
substance already present in atmosphere, which spoils the environment by increase of its
concentration due to human activities.
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FORM ONE ALL NOTES NEW SYLLABUS
FORM TWO ALL NOTES NEW SYLLABUS
F5 COLLIGATIVE & TWO COMMPONET OF LIQUID
F5 & F6 PERIODIC CLASSIFICATION
