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Global warming

Definition

Global warming can be defined as an increase in the average temperature of the earth's atmosphere that causes changes in the climate which may result from the greenhouse effect. Burning of coal is one fo the cause that generates carbon dioxide and other gases which may  increase temperature. Several other factors are also responsible for global warming.

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How Recycling Saves the Earth ?

Directly or indirectly recycling helps to save the earth. We know that the raw materials used in the products comes from our natural resources. The raw materials can be recycled and hence we can help or preserve the environment by recycling this type of products. More information of Advantages and disadvantaes Of Recycling.

Coal

Definition

Coal is considered to be a fossil fuel which is dark black to brownish in color, rock formed from plants that have been fossilized through the process of oxidation. Coal contains amorphous carbon along with different organic as well some inorganic compounds and liberates carbon dioxide and other harmful gases when burned. Coal is widely used to generate electricity as well as heat.

How is Coal Formed ?

Since the 13th century coal is derived from the Old English term col, which means "mineral of fossilized carbon".

Coal consists of high content of carbon and other elements like, sulfur, hydrogen, oxygen, and nitrogen.

Coal is a naturally black sedimentary rock occurring in rock strata in layers or veins called coal beds or coal seams.

Anthracite coal is the solider form of coal, can be considered as metamorphic rock because of later exposure to high temperature and pressure.

What is Coal ?

Coal is a combustible sedimentary rock composed generally of carbon and hydrocarbons.

Coal is non-renewable resource which is the most abundant manufactured fossil fuel in the United States.

Coal is the leading source of energy for the generation of electricity all over the world, also anthropogenic sources of carbon dioxide releases.

Coal act as abundant resource that has been used for thousands of years to yield energy, mutually in the form of heat and electricity.

Types of Coal

Coal is a multifaceted resource which differs in composition even inside the same deposit. There are four different types or ranking based on various levels of coal with differences in energy output as a result of increased temperature,pressure & time

Lignite is a brownish-black coal with great moisture and ash content and the lowest heating value of the four types of coal. It is used for generating electricity.

What is Coal Tar ?

Coal tar is a black fluid of tremendously high viscosity when coal is carbonized,

Coal tar is among the by-products which manufactured coke or gasified to make coal gas.

Coal tars are compound and variable mixtures of phenols, polycyclic aromatic hydrocarbons (PAHs), and heterocyclic compounds.

Paracetamol is the only coal-tar derived analgesic which is still in use today, but industrial phenol is now usually synthesized from crude oil rather than coal tar.

Advantages and Disadvantages of Solar Energy

Some of the Advantages and Disadvantages of Solar Energy are as follows. So let us check it out information on advantages and disadvantages to know more about solar energy

What is solar energy?

The light and the heat from the sun is converted into electricity with the help of photovoltaic cells or solar panels. Solar energy is one of the fastest growing and environmentally friendly and sustainable trend in renewable energy.

Effectiveness of Inorganic Coal

Mineral coal is used in producing steam power to drive railway trains, Steam-ships and Steamers.

Steam-power is produced from water boiled by mineral coal. Electricity is easily manufactured from coal by planting thermal stations near coal mines.

Synthetic petrol is manufactured from mineral; coal through a kind of chemical process.