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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
Related Questions: ENVIRONMENTAL CHEMISTRY-AIR ENVIRONMENTAL CHEMISTRY-WATER List two main sources of acid rain. List four human activities that contribute to air pollution. What is the importance of stratospheric ozone? What is the role of automobiles in air pollution? Define atmosphere. Explain temperature variation in the stratosphere and troposphere. List the components of the stratosphere and … Read more
Acid Rain Formation: Sulfur dioxide reacts with water vapor in the atmosphere to form sulfuric acid, leading to acid rain, which damages buildings, crops, and aquatic ecosystems. Respiratory Problems: SO₂ irritates the respiratory system, causing coughing, asthma attacks, and lung diseases in humans. Related Questions: List two main sources of acid rain. List four human activities that … Read more
Chlorofluorocarbons (CFCs) are synthetic chemicals used in refrigeration, air conditioning, aerosol sprays, and foam products. They contribute to ozone depletion because: 1. CFCs are Stable and Reach the Stratosphere: CFCs do not break down in the lower atmosphere and slowly rise to the stratosphere. 2. UV Radiation Breaks Down CFCs: When CFCs reach the stratosphere, … Read more
Global warming is often called the greenhouse effect because it is caused by the trapping of heat in Earth’s atmosphere, similar to how a greenhouse traps heat inside. Explanation of the Greenhouse Effect: 1. The sun’s rays enter the Earth’s atmosphere and warm the surface. 2. The Earth’s surface emits heat in the form of … Read more
Air pollution occurs when harmful substances are released into the atmosphere, affecting human health, wildlife, and the environment. Causes of Air Pollution: Industrial Emissions: Factories and power plants release pollutants such as sulfur dioxide (SO₂), nitrogen oxides (NOₓ), and particulate matter. Vehicle Emissions: Cars, trucks, and motorcycles emit carbon monoxide (CO), hydrocarbons, and nitrogen oxides. … Read more
The greenhouse effect is a natural process where certain gases trap heat from the sun, keeping the Earth warm enough to sustain life. However, human activities have intensified this effect, leading to global warming. Process of the Greenhouse Effect: 1. The sun’s radiation passes through the Earth’s atmosphere. 2. The Earth absorbs some of this … Read more