How is coal extracted from mountaintop removal mines? (site 2)

Answers

Answer 1

Coal is extracted from mountain top by removal of top soil and the use of explosives.

What is a coal?

A coal is definitely as the solid substance that is made up of mainly carbon and other constituent elements such as hydrogen, sulfur, oxygen, and nitrogen.

The uses of coal include the following:

cement production, carbon fibers and foams, medicines, tars, synthetic petroleum-based fuels, and home and commercial heating.

To extract coal from the mountain top the following is carried out:

The top soil of the area involved us being removed and

Explosives are then used to expose the underlying coal seams.

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Related Questions

humans taste food mostly because of:

Answers

Answer:

taste buds

Explanation:

very sensitive microscopic hairs called microvilli. The tiny hairs send messages to the brain about how something tastes, so you know if it's sweet, sour, bitter, or salty

When charging by induction using grounding, if a negative rod is used, the object will acquire a ______ charge

Answers

When a positively charged rod becomes grounded it becomes neutral. The electrons come from the ground to your hand, then from your hand to the rod making the rod become neutral.

What is happening when a negatively charged rod becomes grounded?

Both of the charged objects receive the same kind of charge when charging through conduction. Both things acquire a negative charge when a negative object is used to charge a neutral object.

The neutral sphere needs electrons from the negatively charged rod in order to become negative. 3. To demonstrate how charging by contact works, we'll first look at the scenario of charging a neutral needle electroscope with a negatively charged metal spherical.

Understanding the process necessitates an understanding of how like charges resist one another and have a strong desire to spread out as widely as possible in order to lessen their repulsions. The extra electrons in a negatively charged metal sphere repel one another and move as far apart from one another as possible.

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When charging by induction using grounding, if a negative rod is used, the object will acquire a positive charge.

What is charging by induction?A charging technique called induction charging involves charging a thing without actually contacting it to another charged object. The charged particle is held close to an uncharged substance which is conductive also, that is grounded on a neutrally charged material during the charging by induction process.This method of charging involves using a charged object to help a neutral object become charged without actually touching the objects. The neutral or uncharged conductor, which is grounded on a neutrally charged substance, is brought closer to the charged particle. If a charge is transferred between two objects, an oppositely polarized charge will emerge in the uncharged conducting material.

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