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What are the 2 major phases of mining?
1. dig a hole; 2. extract the minerals.
What is the difference between strip mining and open pit mining?
1.Depth:strip mining is done for <60 m while open pit is done for>60 to near about 120 m. 2.Design:Strip mining is done maintaining spoil & piles system while open pit has a specific mining structure to follow. 3.Environment:strip mining is normally done for dry area while for open pit mining we have to lower the ground water level.
What are the advantages and disadvantages of mining ores?
Advantages:1) Mining of ores will enable people to get useful elements with significant profit.2) Mining will give unemployed people to get at least the simplest job.3) Mining of ores might result in finding something new and valuable (since we are digging)Disadvantages:1) Since mining sites are usually in the forest areas, trees will be cut while people are getting to these places.2) Workers might die due to accidents.3) Mining sites will be wastelands after the mining is over, leaving the farmers less land for agriculture
What are Three ways rain forests are used and two ways they are threatened?
Ways they are used 1. Wood supply 2. Develop new machinery 3. Lumber companies Ways they are being threatened 1. Being cut down 2. Being used for farming
What are the pros and cons of using olestra?
the benefits are: 1. great tasting 2. Help reduce cancer risk and heart diseases 3. Help reduce obesity and calories
Describe 2 ways to reduce the effects of mining?
Stop using explosives, stop surface and subsurface mining, and start recycling
What are the ways of minimizing the negative effects of mining?
1) You can return the land to its original state after the mining is completed, this process is also called reclamation. 2) We can reduce our need for minerals and recycle.
What are ten suggestions of how to stop some of the environmental impacts from mining?
1. Aforresting 2. Reduce noxis and toxis gasses 3. Too stop the using disel and oil engines. 4. By using good coal. 5. By reducing coal dust. 6. By reclying coal ash. 7. Using underground coal gassification etc.
What are 2 ways recycling can reduce energy use?
Recycling reduce the energy of processing raw material and made into the product, it also reduce the energy required for the waste management process.
What are the 2 ways to reduce the harm ecstasy causes with in society?
1. Dont use it. 2. Dont even look at them.
2 ways solar energy can be used to reduce fossil fuel use?
by solar heating bulidings
What are the 2 mining games?
2 mining games are dig dug 1 and dig dug 2
Where is the weird keystone in Pokemon diamond?
there are 2 ways u can get the keystone mining underground or at route 208 talk to the fighter close to the honey tree
What are 2 ways car manufactures are using to reduce air pollution?
Most manufactures do it. They use catalic converters.
What are two ways you can reduce friction in a machine?
A lubricant such as oil and ball bearings are just (2) methods of reducing friction.
What are 4 ways in which you can manage air and water resources more wisely?
Four ways in which you can manage air and water resources more wisely 1.Prevent and reduce waste and pollution 2.Prevent and reduce potentially harmful chemical exposures to employees and members 3.Reduce risks of accidents and releases 4.Prevent or reduce potential liabilities and regulatory compliance burdens.
How do you reduce a -2?
You cannot reduce a-2.
