Pollution

Sewage refers to waste water and materials that are produced from homes, businesses, and industries, including human waste, food scraps, and other waste products. It is carried away through pipes to be treated at sewage treatment plants, where harmful substances are removed before the water is released back into the environment or reused. Sewage can include water from toilets, sinks, showers, and drains, and its proper treatment and disposal are important for public health and preventing pollution. When not managed correctly, sewage can cause contamination and health risks.

A catalytic converter is a device in a vehicle’s exhaust system that helps reduce harmful gases, such as carbon monoxide, nitrogen oxides, and hydrocarbons, before they are released into the air. It works by using a chemical reaction to convert these harmful gases into less harmful substances like carbon dioxide and water vapor. The catalytic converter is important for improving air quality and ensuring that vehicles meet environmental standards.

Asbestos is a soft, greyish group of minerals made up of tiny fibers that was once commonly used in construction and other products because of its ability to resist fire, heat, and electricity. It was often used in insulation, roofing, flooring, and even clothing for its durability. However, it has been found to be harmful to health, as inhaling asbestos fibers can lead to serious diseases like lung cancer and mesothelioma. Due to these health risks, the use of asbestos has been heavily restricted or banned in many countries.