Do We Have to Learn Case Studies of Class 12 Chapter Environmental Issues?

Introduction

An organism's environment is its surroundings. The environment in which an organism lives is made up of a variety of elements such as air, water, land, and so on. These elements are found in certain amounts in order to maintain a harmonic equilibrium in the organism's surroundings.

Pollution is defined as any change in the proportions of these components that is both undesired and desired. With each passing year, this problem becomes more serious. It's a problem that affects people financially, physically, and socially. The environmental issues, which is deteriorating by the day, must be tackled in order to reverse its negative impacts on humanity and the world.

Causes of Environmental Issue

The expansion of industry and the movement of people from villages to cities in pursuit of work has resulted in an increase in the problem of inadequate housing and unsanitary living conditions. These causes have resulted in an increase in pollution-related issues. There are five forms of environmental contamination: air, water, soil, & noise pollution.

Air Pollution

In today's globe, air pollution is a serious problem. The air we breathe is contaminated by smoke from industry chimneys and cars. Gases such as carbon dioxide, carbon monoxide, and sulphur dioxide are released into the atmosphere, causing significant harm to humans, vegetation, and species. Our communities' domestic fuels, such as dry agricultural waste, dry grass, leaves, and coal, emit dangerous fumes. Acid rain is caused by a buildup of sulphur dioxide in the atmosphere.

Water Pollution

Water pollution is defined as the discharge of pollutants into underground groundwater or lakes, streams, rivers, estuaries, and seas to the point when the contaminants obstruct beneficial water usage or ecosystem function. Water pollution can involve the discharge of energy, such as radiation or heat, into bodies of water in addition to the release of things such as chemicals or bacteria. One of the most important environmental challenges is water contamination. Pollution occurs when waste products from increasing businesses and sewage water are not adequately processed before being disposed of into rivers and other water bodies. Pollution of water bodies is also caused by agricultural practises that use excessive fertilisers and pesticides.

Soil or Land Pollution

The degradation of the earth's land surfaces, both above and below ground level, is referred to as land pollution. The buildup of solid and liquid waste products contaminating groundwater and soil is the reason. Municipal solid waste (MSW) is the term used to describe these waste items, which comprises both hazardous and non-hazardous garbage. The permeability of the soil formations beneath the garbage can raise or decrease the danger of land contamination when waste is put onto a piece of land. The greater the permeability of the soil, the greater the risk of land contamination. That's why the Texas Disposal Systems Landfill, just outside of Austin, Texas, was created in such a strategic location. Soil contamination is the second major source of pollution in the environment. Plastics, polythene, bottles, and other waste products pollute the environment and make soil infertile. Moreover, the disposal of dead individuals and animals, as well as the washing of clothes and kitchenware, contribute to the problem. It is a particularly harmful feature of the ecosystem since it impacts the area's and country's fertility and food supply.

Noise Pollution

Noise pollution has the potential to harm humans and wildlife on land and at sea. Loud or unavoidable noises, ranging from highway noise to rock concerts, can induce hearing loss, stress, and elevated blood pressure. Whales and dolphins that rely on echolocation to thrive are endangered by noise from ships and human activities in the water. This is a type of pollution that is difficult to detect. To a significant extent, all human activities contribute to noise pollution. Vehicle horns, loud speakers, music systems, and industrial operations all add to this problem. Other environmental challenges include ozone depletion, global warming, greenhouse effect, changes in climate and meteorological conditions, glacier melting, and so on.

How to Minimize Environmental Issues?

Preventative efforts must be made to reduce the severity of this problem. Reuse, Reduce, and Recycle are the three R's that may be used to conserve the environment. Reuse items as much as possible. Find a technique to reuse items rather than tossing them away after one usage. Reduce the quantity of garbage that is produced. Recycle: Paper, plastics, glass, and electrical devices may all be recycled into new products using less natural resources and energy. In order to avoid and regulate air pollution, better-designed equipment and smokeless fuels should be utilised in both households and businesses. To balance the environment and control greenhouse gas emissions, more trees should be planted. Noise pollution may be reduced by better vehicle design and maintenance. Sound proofing devices, such as generators, can help to lessen industrial noise. Plastic bags must be phased out of use in order to reduce soil contamination. Before being used as fertilisers or landfills, sewage should be adequately processed. Water contamination may be controlled using a variety of methods. Some of them, such as the water demand, can be reduced by modifying the procedures used. Water should be reused after being treated. It is necessary to decrease the amount of water waste released.

Conclusion

Every individual has a responsibility to save our world from these environmental concerns. If no preventative actions are done, our future generations will be forced to deal with serious consequences. In addition, the government is taking measures to raise public awareness. Every person should take part in the effort to minimise as well as regulate pollution.

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