what is coal made of?

Answer 1

Trees that fell down millions of years ago and got so compressed that eventually it turned into coal by fossilisation. Oil is thethe fossilised remains of billions of insects and other creepy crawlies

Answer 2

The remains of plant life that has been buried and highly compressed in anaerobic conditions. Coal deposits show evidence of a history. As for the age of coal, most coals are found deep within layers of sedimentary rocks deposited in flood plains. They often contain stream channels, roots, and soil horizons.A long time may not be necessary to form the coal itself, but it is necessary to account for the context where coal is found.

Answer 3

Coal is a fossil fuel. It is a combustible, sedimentary, organic rock, which is composed mainly of carbon, hydrogen and oxygen. It is formed from vegetation, which has been consolidated between other rock strata and altered by the combined effects of pressure and heat over millions of years to form coal seams.

Coal is the altered remains of prehistoric vegetation that originally accumulated in swamps and peat bogs.

The build-up of silt and other sediments, together with movements in the earth’s crust (known as tectonic movements) buried these swamps and peat bogs, often to great depths. With burial, the plant material was subjected to high temperatures and pressures. This caused physical and chemical changes in the vegetation, transforming it into peat and then into coal.

Coal formation began during the Carboniferous Period – known as the first coal age – which spanned 360 million to 290 million years ago.

The quality of each coal deposit is determined by temperature and pressure and by the length of time in formation, which is referred to as its ‘organic maturity’. Initially the peat is converted into lignite or ‘brown coal’ – these are coal-types with low organic maturity. In comparison to other coals, lignite is quite soft and its colour can range from dark black to various shades of brown.

Over many more millions of years, the continuing effects of temperature and pressure produces further change in the lignite, progressively increasing its organic maturity and transforming it into the range known as ‘sub-bituminous’ coals.

Further chemical and physical changes occur until these coals became harder and blacker, forming the ‘bituminous’ or ‘hard coals’. Under the right conditions, the progressive increase in the organic maturity can continue, finally forming anthracite.

Answer 4

living matter. Although it does NOT take millions of years as scientist have made coal out of living "sludge" in a matter of hours in a laboratory by simply exposing it to a lot of pressure and heat.

Answer 5

Carbon

Answer 6

coal

Answer 7

Santa Claus' missing bad boy presents

Answer 8

Decayed living matter

Answer 9

compressed vegetation from billions of years ago.

Answer 10

organic carbon