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Questions
With reference to pollution, explain the following:
Air pollution
Explain the following.
Air pollution
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Solution 1
Air pollution is the excessive concentration of foreign matter in the air which adversely affects the well-being of human beings, animals, plants, and their environment. Air pollution is caused by the addition of chemicals, carbon monoxide, sulphur dioxide, hydrogen sulphide by various factories, industrial plants.
Solution 2
Air pollution is the presence in the atmosphere of substances, gases, fine particles, and biological material at concentrations that threaten human health, ecosystems, and materials; it comes from both natural sources (dust, wildfires, volcanoes) and mostly from human activities such as transportation, industry, power generation, waste burning, and agricultural practices. Common pollutants include carbon monoxide, sulphur dioxide, suspended particulate matter (soot and fine dust), oxides of nitrogen, hydrocarbons, ozone (a secondary pollutant), lead and other toxic metals and compounds; these agents can cause short‑term effects such as eye and throat irritation, headaches and acute respiratory infections, and long‑term harms including chronic respiratory disease, cardiovascular disease, cancer and damage to the nervous system and organs. Beyond direct health impacts, air pollution reduces visibility (smog), damages crops and forests, corrodes buildings, contributes to acid rain, and adds greenhouse gases that drive climate change and sea‑level rise. Air quality is commonly tracked with indices such as the AQI to show how polluted the air is and what precautions the public should take.
