Tag: geography

Waste management is the process of disposing of waste in a manner that does not harm the environment unnecessarily. It involves collection that is picking up waste material from the source, segregation which involves separating of products which can be recycled from those which are toxic to reduce waste and lastly composting which involves the dumping of waste so that it can be degraded in the environment.

The resources which can be reproduced by physical, chemical and mechanical process is called renewable resources. These are the sources which can be replenished over a period of time. Examples are forest, soil, wild life etc.

Environment is the surrounding in which the life exists. It is very essential to protect environment because life completely depends on environment. It can be protected by afforestation, by keeping the surrounding clean, by conserving energy and also by protecting wild life.

Electroplating is widely used in various industries for coating metal objects with a thin layer of a different metal. The layer of metal deposited has some desired property, which the metal of the object lacks.  Electroplating has wide usage in industries. It is also used in making inexpensive jewellery. 

Compounds that accumulate in the bodies cannot be digested and are passed onto the consumers. These are not excreted. These accumulants pass from one body to another by ingestion. This is called bio accumulation. Examples are lead and mercury.

A zero-emissions vehicle, or ZEV, is a vehicle that emits no tailpipe pollutants from the onboard source of power. Harmful pollutants to the health and the environment include particulates (soot), hydrocarbons, carbon monoxide, ozone, lead, and various oxides of nitrogen. Although not considered emission pollutants by the original California Air Resources Board (CARB) or U.S. Environmental Protection Agency (EPA) definitions, the most recent common use of the term also includes volatile organic compounds, several air toxics and global pollutants such as carbon dioxide and other greenhouse gases.

Environment is the surrounding in which the life exists. It is very essential to protect environment because life completely depends on environment. Wild life forms major part of environment. They ought to be protected because one way or the other life is interconnected and one form of life depends on the other. In order to protect wild life, hunting has to be stopped.

Environment-friendly, (also referred to as eco-friendly, nature-friendly, and green) are sustainability and marketing terms referring to goods and services, laws, guidelines and policies that claim reduced, minimal, or no harm upon ecosystems or the environment.

During mining, extraction of minerals from rocks generates waste. In this process waste minerals are also generated. It is followed by benefaction wherein the mineral obtained is washed, crystallized etc to separate out the finer waste that comes along. After this, the mineral is chemically treated such that the waste obtained after the process is much different from the waste that entered the system.

Gas leak is a menace during mining mining, especially, methane. This happens more in coal mines, where there is abundance of carbon. An atom of carbon with hydrogen to form methane. It is suffocating and has proved fatal to miners in the past.