1. VI GROUP

2.  NUCLEAR ENERGY - PROCESS - USES - CONSEQUENCES  GEO THERMAL ENERGY - PROCESS - USES - CONSEQUENCES  CONSEQUENCES

4. NUCLEAR POWER IT IS GENERATED BY a process called nuclear fission, the nucleus of a heavy atom (such as uranium, plutonium or thorium), when bombarded with low-energy neutrons, can be split apart into lighter nuclei. When this is done, a tremendous amount of energy is released

5. Nuclear power is produced by controlled (i.e., non-explosive) nuclear reactions. Commercial and utility plants currently use nuclear fission reactions to heat water to produce steam, which is then used to generate electricity.

6. The released energy can be used to produce steam and further generate electricity. Examples :- Nuclear power reactors located at Tarapur (Maharashtra), Rana Pratap Sagar (Rajasthan), Kalpakkam (Tamil Nadu), Narora (UP), Kakrapar (Gujarat) and Kaiga (Karnataka) have the installed capacity of less than 3% of the total electricity generationcapacity of our country.

8. USES In 2009, 13-14% of the world's electricity came from nuclear power. Also, more than 150 naval vessels using nuclear propulsion have been built. The fission of an atom of uranium, for example, produces 10 million times the energy produced by the combustion of an atom of carbon from coal.

9. NUCLEAR ENERGY HIGH LEVEL ENERGY: 20-30 TONS OF HIGH LEVEL WASTE ARE PRODUCED PER MONTH PER NUCLEAR REACTOR. TO AVOID THIS SEVERAL METHODS LIKE DEEP BUIRING METHODS,REMOVAL OF SPACE,ETC. BUT NONE HAVE BENN IMPLEMENTED

10. URANIUM MINING WHILE DOING URANIUM MINING 35 MILLION LITRES OF WATER ARE USED FOR THIS PROCESS IN AUSTRALIA, IT PLANS TO INCREASE IT TO 150 MILLION LITRES. This plays a major role in depletion of water resources and contributes a lot to global warming.

11. CONSEQUENCES IF THE NUCLEAR REACTERS CORE METAL IF NOT HANDLED CAREFULLY THEN IT MAY LEAD TO MANY ENVIRONMENTAL BAD EFFECTS IMPROPER NUCLEAR WASTE STORAGE AND DISPOSAL RESULT IN ENVIRONMENTAL CONTAMINATION. IT RELEASES HARMFUL GASES WHICH POLUTES THE ENVIRONMENT THE MAJOR HAZARD OF NUCLEAR POWER GENERATION IS THE STORAGE AND DISPOSAL OF THE SPENT OR USED FUELS FOR EX, THERE IS A RISK OF ACCIDENTAL LEAKAGE OF NUCLEAR RADIATION.

12. Chernobyl disaster TOOK PLACE 26 April 1986 CONSIDERED AS ONE OF THE WORST NUCLEAR DISASTER 4056 PERSONS DEAD 300000 PEOPLE AFFECTED CAUSED A LOSS OF 387 MILLION $ MAINLY DUE TO SPREAD OF RADIOACTIVE EFFULENTS

14. GEO THERMAL ENERGY Due to geological changes, molten rocks formed in the deeper hot regions of earth’s crust are pushed upward and trapped in certain regions called ‘hot spots’. When underground water comes in contact with the hot spot, steam is generated. The steam trapped in rocks is routed through a pipe to a turbine and used to generate electricity.

15. The cost of production would not be much, but there are very few commercially viable sites where such energy can be exploited. There are number of power plants based on geothermal energy operational in New Zealand and United States of America.

17. USES Geothermal power is cost effective, reliable, sustainable, and environmentally friendly

18. GEOTHERMAL ENERGY :- IT RELEASES SOME GASES LIKE CARBON DI OXIDE WHICH CONTRIBUTES TO GLOBAL WARMING.

19. EXPLOITING ANY SOURCES OF ENERGY DITURBS THE ENVIRONMENT IN SOME WAY OR THE OTHER. BURNING OF FOSSIL FUELS CAUSES AIR POLLUTION AND IT ALSO MAKES THAT PARTICULAR RESOURCE SCARCE. NOT ONLY FOSSIL FUEL, ANY TYPE OF FUEL YOU TAKE THERE IS A DISADVANTAGE. ENVIRONMENTAL CONSEQUENCES

20. IN SOME CASES THE ACTUAL OPERATION OF A DEVICE LIKE SOLAR CELL MAY BE POLLUTION FREE, BUT THE ASSEMBLY OF THE DEVICE MAY CAUSE SOME ENVIRONMENTAL DAMAGE

21. DONE BY:- R.SENTHIL P.TABREEZ SAI VIGNESH ROHIT S.SIDDARTH V.SIDDARTH