Mining

It's called an ironing board.

yes it can get into your lungs and cause lung cancer

Everything that was not grown comes from mining. Coal, uranium, and oil for the powerplant that is powering your computer at this moment. About 32 different elements in your computer came from mining. The nails that hold your house together, the wiring in the walls, and the hinges on the door came from mining. Remember that the period before mining was called the Stone Age.

California

The Ashley Mines Commission was an parliamentary commission that interviewed mine employers and workers from 1841-1842, focusing on physical conditions and sexual behavior of the workers. The inquiries resulted in the Mines Act of 1842, which sought to reduce immoral behavior and sexual bullying by prohibiting underground work for all women (and for boys younger than ten).

They are found in Northeastern France, Western Germany, Northern Sweden, and the Balkan Peninsula.

supoort meand the uninon of probhabilty of A union B

and confidance is the probhability of B divide by A

De Beers has used many methods to remain at the top. These include, flooding the market, stockpiling diamonds and convincing producers to join its monopoly. For more detailed information, visit http://en.wikipedia.org/wiki/De_Beers#Diamond_monopoly.

Spiral Concentrators are used in Iron ore beneficiation plants for Gravity Separation. It separates the higher density Iron Ore from Silica based on density difference as concentrate, middling & tailing.

yes you'll see it if you watch GOLD RUSh

A Pitchstick.

The steam engine needs coal, the coal comes from the coal mine

It closed in 1962 and was donated for educational purposes in 1965.

blue diamond

mines close when the ore is not producing enough minerals to pay for the expenses of the mine and not making a profit. They reopen if the price of the mineral in the ore goes up enough so that the mine makes a profit. Example: a mine produces $100 of gold per ton back in 1900. But extracting it costs $500 so the mine closes. Now with gold prices today it would be $1900 of gold per ton and an extracting cost of $700. So it reopens.

It depends on yeah...for example if I have 10 ice cubes and 11 apples how many pancakes can fit on a roof? Purple. Because aliens don't wear hats.

Yes, it is called an extractive economy

In several ways. The type of mining may be changed to a form that has a lesser impact on surroundings, and mined land can be reclaimed, restored, or placed into other uses.

The land is contoured to prevent erosion. Topsoil is replaced, and seeded/planted to grow new vegetation. Provision is made for drainage of rainwater. Current mines are required to reclaim mined land, and funds are provided to reclaim older mines.

so that they could make more money and trade off more things in return forneven vetter things

While the safety and health of coal miners has improved greatly, it is still dangerous work, and people may be hurt or killed. While there is some degree of hazard to ANY job, mining still ranks among the most dangerous.

It is a jelly type explosive that can be pumped into holes in rock for blasting. It is an emulsion (where two things that don't usually mix are mixed- like oil and water) It consists of an oxidizer and a fuel, mixed into a water base. It is a safe and economical explosive for mining and mass excavations in construction. May also be called a "water gel".

A lot like a slightly greasy piece of glass, really.

If you're asking about the crystal form, it's often octahedral.

Yes they are. Sir Martin Frobisher discovered iron ore which he thought was gold. This was later used to build many roads

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