Prove that
Sin 2A - 2 tan A A
It tant A
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Sources of Surface Water Pollution:
Sewage: Emptying the drains and sewers in fresh water bodies causes water pollution. The problem is severe in cities.
Industrial Effluents: Industrial wastes containing toxic chemicals, acids, alkalis, metallic salts, phenols,...
Synthetic Detergents: Synthetic detergents used in washing and cleaning produce foam and pollute water.
Agrochemicals: Agrochemicals like fertilizers (containing nitrates and phosphates) and pesticides (insecticides,.
Step-by-step explanation:
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