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What is the source of coal energy?
Dead marsh plants. The majority of coal (and the best grades: bituminous and anthracite) is from plants that died during the Carboniferous (this was before the first dinosaurs lived). Small amounts of very low grade coal (lignite and peat) are much more recent (with some still forming now).
Can coal be renewed and be brought about again?
No, coal is a non-renewable resource. It takes millions of years for coal to form from dead plant matter, so it cannot be replenished within a human lifespan. Once it is extracted and burned, it is gone.
Is Surface mining is a method of obtaining coal?
Yes, surface mining is a method of obtaining coal where coal deposits are close to the Earth's surface and can be extracted by removing layers of soil, rock, and vegetation. This method is used when coal is not deep underground, making it more cost-effective and faster to extract.
Why is coal ground into fine dust in power stations?
Coal is ground into fine dust in power stations to maximize its surface area, allowing for better combustion efficiency. This helps ensure a faster and more complete combustion of coal particles to generate heat for the production of electricity. Finely ground coal also burns more cleanly, reducing emissions of pollutants into the environment.
Is coal energy renewable nonrenewable or inexhaustible?
Coal is a nonrenewable resource because there is only so much coal in the ground, and when you dig it all out, there is no more. However, the quantity of coal that is available is very large. It is not running out soon.
Why do some countries have more coal than others?
Natural resources such as coal or gold are not equally distributed around the globe. Look for a picture of the coal deposits in America. Texas has more coal than California. This is the same with larger countries some have it and some don't.
What are the advantage and disadvantage of coal relative to oil?
Coal has only one advantage relative to oil, which is that it is abundant and relatively inexpensive. Disadvantages include, it is more polluting (due to impurities in the coal) and it is harder to handle; oil can be pumped, whereas coal has to be shoveled. Coal mining is often more difficult and dangerous than pumping oil out of the ground. Coal dust creates the dangers of explosion, and black lung disease.
Why is coal crushed and ground into a fine powder before it is blown into the boiler furnaces?
Coal is crushed and ground into a fine powder before being blown into boiler furnaces primarily to improve combustion efficiency. Here's why: Increased Surface Area: When coal is ground into a fine powder, its surface area increases dramatically. This allows it to burn much more quickly and completely when mixed with air. Faster Combustion: Fine coal particles ignite faster than larger chunks. This ensures that the coal burns rapidly and releases heat more efficiently, which is essential for power generation. Better Temperature Control: Pulverized coal allows for better regulation of furnace temperatures, improving the overall stability and efficiency of the boiler. Reduced Unburnt Residue: Finely ground coal ensures more complete combustion, which reduces the amount of unburnt carbon in the ash and lowers waste. Improved Heat Transfer: Complete and efficient burning of pulverized coal produces a consistent and intense flame, which enhances the heat transfer to the boiler tubes, producing steam more effectively. In short, pulverizing coal makes the combustion process more efficient, cleaner, and better suited for large-scale power generation. 4o
How is polonium extracted from the ground?
Polonium is a rare and radioactive element that is not typically extracted directly from the ground. Instead, it is usually produced as a byproduct of uranium or thorium decay in nuclear reactors. It is separated using chemical processes, such as solvent extraction or precipitation, from the other byproducts generated during nuclear reactions.
How is the copper ore extracted from the ground?
Copper ore is typically extracted from the ground through a process called mining. This involves drilling, blasting, and hauling the ore to the surface for processing. Methods such as open-pit mining or underground mining are commonly used to extract copper ore from the ground.
Why did Europeans want to get to Asia quickly and more cheaply?
to explore
How are fossil fuels taken from the earth?
Coal is dug up from under the ground. There are coal mines in very many countries around the world.Oil and gas come from wells that are drilled down into the ground, sometimes under the sea bed.Natural gas and crude oil can be found in many places around the world, such as the Middle East (has about 70 per cent of the world's known resources of oil), North America and under the North Sea off the coast of the UK.Natural gas and crude oil can be found in many places around the world, such as the Middle East (has about 70 per cent of the world's known resources of oil), North America and under the North Sea off the coast of the UK.Underground with machines.
