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When slaked lime (Ca(OH)₂) reacts with alum (Al₂(SO₄)₃), it forms aluminum hydroxide and calcium sulfate: Al₂(SO₄)₃ + 3Ca(OH)₂ → 2Al(OH)₃ + 3CaSO₄ Related Questions: List the impurities present in rainwater. List toxic substances present in household wastes. In what ways do industrial wastes pollute water? What is water pollution? List some waterborne diseases. What … Read more
Lakes and streams become polluted due to industrial waste discharge and agricultural runoff containing fertilizers and pesticides. Household sewage and plastic waste also contribute to water pollution. Related Questions: List the impurities present in rainwater. List toxic substances present in household wastes. In what ways do industrial wastes pollute water? What is water pollution? … Read more
Hard water contains high concentrations of dissolved calcium and magnesium salts. It is undesirable because it forms scale in pipes and boilers, reduces soap lather, and causes skin dryness. It also leads to inefficient washing and increased detergent usage Related Questions: List the impurities present in rainwater. List toxic substances present in household wastes. In … Read more
Pathogenic microorganisms are harmful bacteria, viruses, fungi, or parasites that cause diseases in humans and animals. Examples include E. coli, Salmonella, Vibrio cholerae, and Giardia lamblia. Related Questions: List the impurities present in rainwater. List toxic substances present in household wastes. In what ways do industrial wastes pollute water? What is water pollution? List some … Read more
Common waterborne diseases include cholera, typhoid, dysentery, hepatitis A, and giardiasis. These diseases spread through contaminated drinking water and poor sanitation. Related Questions: List the impurities present in rainwater. List toxic substances present in household wastes. In what ways do industrial wastes pollute water? What is water pollution? What are pathogenic microorganisms? What is hard … Read more
Water pollution occurs when harmful substances contaminate water bodies, making them unsafe for drinking, cooking, and other uses. Common sources of water pollution include industrial waste, sewage, agricultural runoff, and chemical spills. Related Questions: List the impurities present in rainwater. List toxic substances present in household wastes. In what ways do industrial wastes pollute … Read more
Industries discharge harmful chemicals such as heavy metals, acids, dyes, and oils into water bodies. These pollutants reduce oxygen levels in water, making it toxic for aquatic life. Some chemicals also cause long-term contamination of groundwater. Related Questions: List the impurities present in rainwater. List toxic substances present in household wastes. What is water … Read more
Household wastes contain several toxic substances, including detergents, pesticides, heavy metals from batteries, paints, and chemical cleaners. Some of these substances, like lead and mercury, can be harmful to the environment and human health. Related Questions: List the impurities present in rainwater. In what ways do industrial wastes pollute water? What is water pollution? … Read more
Rainwater contains both dissolved and suspended impurities. Some of the common impurities include dust particles, gases like carbon dioxide and sulfur dioxide, and dissolved salts. It may also contain microorganisms and organic matter from the atmosphere. Related Questions: List toxic substances present in household wastes. In what ways do industrial wastes pollute water? What is … Read more