1.

State whether the following statements are true or false with proper explanation:i. In thermal power plants, the turbines work on solar energy.ii. How to dispose the nuclear waste safely is a big challenge before the scientists.iii. The efficiency of power generation using coal plant is higher than that of power generation plant based on natural gas.iv. Energy obtained from nuclear fission is eco-friendly.v. In hydroelectric power plant, the kinetic energy in water stored in dam is converted into potential energy of water.

Answer»

i. False. 

(In thermal power plant, the turbines work on steam. The turbines working on solar energy are not used.)

ii. True. 

(Nuclear waste disposal is the greatest problem. It produces highly toxic effects in any ecosystem. Therefore, disposing such radioactive substances becomes a major challenge.)

iii. False. 

(The efficiency of power generation using natural gas plant is higher than that of power generation plant based on coal.)

iv. False. 

(Energy obtained from nuclear fission is not eco-friendly, because if accidents happen it leads to hazardous accidents.)

v. False. 

(In hydroelectric power plant, the potential energy in water stored in dam is converted into kinetic energy of water. The forceful downpour of flowing water causes this kinetic energy.)


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