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What is the difference between opencast mining and shaft mining?
in open cast miniing the earth surface is simly dug out to take minerals which are shallow.in shaft mining we should put bores to take minerals which are deep under the earth
What states does coal mining take place in?
Wyoming, Utah,Montana and Colorado have large mining operations. Eastern coal mining includes Pennsylvania, WV, KY, VA- and other states as well.
What are the adaptations of a saprophytes in the rainforest?
they take up alot of minerals and animals
A type of chemical weathering in which minerals react with dissolved oxygen in water is known as?
Physical weathering is a type of weathering in which minerals react with dissolved oxygen in water. This causes chemical changes to take place in the minerals.
What are the advantages and disadvantages of coal mining?
Coal mining has many very bad cons and drawbacks. For one, it is highly dangerous. Coal mines have been known to collapse in on workers, trapping or killing them. The dust and dirt and materials in the mines and air around the mines can be polluting and can be very harmful when breathed in or on the skin, especially for longer periods of time. Coal is a finite resource. It take millions of years to replenish itself. With the limited amounts constantly being mined and used for energy, the resources of coal around the world are depleting. If mining continues, eventually there will be pretty much no more coal left. The effects of burning and using the mined coal for energy also cause pollution and are bad for the environment.
What is the difference between opencast mining and shaft mining?
in open cast miniing the earth surface is simly dug out to take minerals which are shallow.in shaft mining we should put bores to take minerals which are deep under the earth
What has the author Robert Keir written?
Robert Keir has written: 'Conservation and mining; Take care with fire in the forest; Algae growth stimulated by the minerals in water'
Did mining take place in the medieval times?
Mining for minerals has taken place as far back as 3,000 years ago. This is how tin and copper were originally discovered. Also one of the reasons the Romans conquered southern England was to seize the mines.
What Gives roots a large surface area to absorb minerals?
the root hairs attached to the root give the root cell a large surface area so that they can take minerals and water in more efficiently
How many construction workers does it take to build a building?
depends on the area and height of the building
How do you make each of the workers take different minerals at once in Starcraft?
If 2 or more workers are going onto the same mineral stack, and there are free stacks within range. They will automatically switch to a free one.
Why did mining companies take over the mining industry?
THE INGJMK
Does fern take in minerals?
Yes. Ferns can take in minerals.
What is roots take in their nonliving materials?
minerals
How do poll workers verify your registration when you vote?
When you go to vote, the poll workers will verify your voter registration. They will take your name and picture ID to check against the registered voters in the area.
How are plant roots adapted to their functions?
They have root hairs to increase surface area to increase their capacity to take in water and dissolved minerals.
What are the environmental effects of using mineral resources?
The scale and level of requirement of minerals have increased manifold in our country and it is heading towards the stage where much larger consumption of minerals will be inevitable to sustain even the minimum growth rate of our economy. It is pertinent to note that out of the total land area of the country (3.29 million sq. kms.), the area leased out of mining, as on 1.9.94, was 7126.13 sq. kms. Comprising about 9,213 mining leases excluding atomic minerals, minor minerals, petroleum and natural gas this constitutes only about 0.25 per cent of the geographic area of the country and that including atomic minerals and minor minerals it may be around 0.28 per cent of the total area. Although the area occupied for mining activity is small yet the damage to the environment on account of mining is causing grave concern. Environmental degradation resulting from mining activity in general can be briefly enumerated as follows: 1. Air pollution with dust and gases due to drilling, blasting, mine haulage and transportation by road, and also from waste heaps; 2. Water pollution when atomic elements and other harmful elements are present in the ore/mineral mine effluents; 3. Modifying water regimes such as surface flow, groundwater availability and lowering down of water table; 4. Soil erosion, soil modification with dust and salt; 5. Noise and vibration problem in the mine and adjoining habitat including wild life; 6. Alteration of the landform; 7. Deforestation affecting flora and fauna; and 8. Spoiling aesthetics with untreated waste dumps. The impact of mining in environmental degradation has been receiving attention in recent years. An overwhelmingly large number of small mines being open pit mines, land degradation including deforestation take place consequent to mineral exploitation where the extent of damage caused by mining may not be significant individually, the cumulative effect, especially by a cluster of mines, becomes fairly large. Air pollution is quite common due to blasting and transportation of minerals and very largely by crushing units where such crushing is essential for marketing the mineral. Even unestablished waste dumps cause air pollution and wash off during monsoon. Over burden and waste generated during mining, degrade land and can pollute adjoining farmlands and water sources.
