Q17 of 27 Page 520

(a) Name two elements which can be used for generation of electricity in a nuclear power plant.

(b) Why could many nuclear power plants not be installed in our country? Give two reasons.

The nucleus of a heavy atom as such uranium, plutonium and thorium can be used to generate electricity in a nuclear power plant.

Many nuclear power plants could not be installed in our country because


High cost of installation


High risk of environmental contamination.


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State the energy conversion taking place in the solar cell panel. For what purpose, solar cell panel is used? State its two main advantages.

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List in tabular form three distinguishing features between a thermal power plant and a geothermal power plant.

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(a) How does construction of dams across the river get linked with production of greenhouse gases?

(b) How do technological inputs improve the efficiency of bio-mass fuels?

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(a) Bio-mass contains stored energy. Justify it.

(b) How does bio-gas plant help to reduce the problem of pollution?