Pollution of Air and Water - Chapter Wise CBSE Solved Question and Answer Based On NCERT
Points To Remember:
Air pollution is the introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause discomfort, disease, or death to humans, damage other living organisms such as food crops, or damage the natural environment or built environment
Pollutants are the substance which contaminate air and water
Major pollutants of air are carbon monoxide, nitrogen oxides, carbon dioxide, methane and sulphur dioxide
Global warming is caused because of the increasing levels of greenhouse gases like CO2
Water pollution is the contaminationof water bodiese.g. lakes, rivers, oceans, aquifers and groundwater, water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds
Major contaminants of water are sewage, agricultural chemical and industrial waste
Water is the precious natural resource, we must learn to conserve it and should make its wide and judicious use.
