how are coal and petroleum formed explain them
Answers
Coal and petroleum are formed as a result of degradation of ancient plant life which lived millions of years ago. These dead plant matter started to pile up, eventually forming a substance called peat. Over time, heat and pressure from geological processes transformed these materials into coal.
Answer:
How Is Coal Formed?
Formation of coal dates back to millions of years ago, when the earth was covered only with vast moist forests, having huge trees, shrubs, ferns etc. These plants underwent their life cycle and withered away eventually falling back to the ground, most of which were swamps. New plants replaced them, they underwent a life cycle and the whole process continued repeatedly over the years as a result of which the earth bed started accumulating all these dead plants.
This gave rise to a very thick layer of dead decomposed matter packing down plant matter washing away all the decayed matter. Physical and chemical changes took place as a result of heat and temperature extracting out all oxygen leaving the plant layers with carbon-rich content, thus resulting in the formation of coal over a period of time.
How is Petroleum Formed?
Petroleum is a fossil fuel that naturally occurs in the liquid form created by the decomposition of organic matter beneath the surface of the earth millions of years ago. These fossil fuels are then refined into usable substances such as petrol, kerosene etc. It is formed by the combination of hydrocarbons and other substances, mainly sulphur. When first collected in its natural form, it is termed as crude oil. This substance is generally characterized by a brownish-black colour. Although, it can also differ between red to pale yellow or even colourless. Its thickness (viscosity) varies from nearly solid tar-like consistency to low viscosity, almost like water.
Petroleum products are obtained as a result of refining crude oil in oil refineries. There are numerous products that are created from petroleum and its by-products. A study reveals that by-products of petroleum alone provides scope to obtain 6000+ new products, to name a few, fertilizers, perfumes, flooring, insecticides, soaps, vitamins, petroleum jelly etc.
Explanation:
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