EVS UNIT2.pptx *Natural resources (a) Renewable resources (b) Non renewable resources

BHOMSINGH4 256 views 132 slides Oct 19, 2024
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About This Presentation

Natural Resources _
Renewable resources
Non renewable resources
forest resources
water resources
Energy resources
land resources

Size: 30.87 MB
Language: en
Added: Oct 19, 2024
Slides: 132 pages

Slide Content

Unit II BY_ MR. Bhom Singh Rathore (Nursing Tutor) Seedling School of Nursing ,JNU Jaipur

Energy Resources

(Non renewable ) (Renewable )

Solar water Heater Solar Furnance

Solar green House

Solar power Plant

Non Renewable sources

1.

Coal has many uses, including:  Electricity generation : Coal is burned in power stations to generate electricity.  Steel production : Coal is used to smelt iron ore into iron, which is then refined into steel.  Cement production : Coal is used as an energy source in the production of cement.  Transportation : Coal-derived fuels and coal-based electricity are used in transportation.  Chemical products : Many chemical products are made from coal byproducts, such as creosote oil, naphthalene, phenol, and benzene.  Heating : Coal is used for home and commercial heating.  Paper and aluminum industries : Coal is an essential input for these energy-intensive industries.  Medicines : Coal is used to make medicines.  Tars :  Coal tar is an ingredient in shampoos, soaps, and ointments. 

Coal has several advantages and disadvantages, including:  Advantages   Abundance : Coal is abundant and affordable.  Reliability : Coal is a reliable energy source.  Efficiency : Coal is dense and burns for a long time at a high temperature.  Storage : Coal is easy to store.  .Disadvantages   Environmental issues : Coal mining and use can cause environmental issues like habitat destruction, air pollution, and greenhouse gas emissions.  Nonrenewable : Coal is a fossil fuel, which means it's nonrenewable and will eventually run out.  Air pollution : Coal emits more air pollutants than other fuels.  Mining destruction : Coal mining can destroy habitats and scenery, and displace people. 

2. Petroleum (crude oil) 2.

Advantages   Energy source : Petroleum is a powerful energy source that can be used to generate electricity and heat homes and businesses.  Transportation : Petroleum is easy to transport.  Petrochemical industry : Petroleum is the basis of the petrochemical industry.  Infrastructure : Petroleum is used in the construction of roads, power generation, and pharmaceuticals.  Disadvantages   Environmental issues : Petroleum is a nonrenewable resource that is used faster than it can be reproduced. The extraction and use of petroleum can have negative environmental effects, including:  Air and water pollution : Oil spills and gas leaks can deplete oxygen and release pollutants that can cause acid rain.  Global warming : Carbon released into the atmosphere from burning petroleum contributes to global warming.  Water table : Fracking can affect the water table  

Land Resources

B.s.rathore

Desertification in India Population growth, removal of wood, overgrazing, soil erosions, etc. are all important factors that have caused desertification in India. According to the Government’s data recently presented to the United Nations Convention to Combat Desertification (UNCCD), India lost 31%, or 5.65 million hectares, of grassland area in a decade. As per reports, over 105 million hectares or about 32% of India’s areas have degraded. Between 2003-2005 and 2011-2013, 26 states witnessed an increase in the level of desertification in India.

Desertification Causes Overgrazing Deforestation Farming Practices Urbanization and other types of land development Climate Change Stripping the land of resources Natural Disasters Desertification Impacts Farming becomes difficult or even impossible in the area Flooding chances are more Hunger – because of no farming Poor quality of water Overpopulation Poverty as a result of the above

Steps To Reduce Desertification Given below are the steps which may help in reducing Desertification: Focus on Water management. Rainwater harvest must be done, water that can be reused must not be left out as waste Reforestation and tree regeneration Buttressing the soil through the use of sand fences, shelter belts, woodlots and windbreaks Better and hyper-fertilization of soil through planting The residue from pruned trees can be used to provide mulching for fields thus increasing soil water retention and reducing evaporation
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natural resources renewable resources non renewable resources forest resources water resources energy resources
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