4. Why should energy be saved? 5. What is the main feature of public transport in cities? 6. Name a few non-conventional sources of energy.
Answers
Answer:
A4-The two major motives for conserving energy are to save on utility bills and protect the environment
A5-Trains allow high capacity on short or long distance, but require track, signalling, infrastructure and stations to be built and maintained. Urban rail transit consists of trams, light rail, rapid transit, people movers, commuter rail, monorail, suspension railways and funiculars
A6-Energy generated by using wind, solar, small hydro, tides, geothermal heat and biomass is known a non-conventional energy. All these sources are renewable process of energy generation and do not cause environmental pollution.
Answer:
4.Saving energy reduces air and water pollution and conserves natural resources, which in turn creates a healthier living environment for people everywhere. At the same time, efficiency also saves money and creates jobs.
5.Trains allow high capacity on short or long distance, but require track, signaling, infrastructure and stations to be built and maintained. Urban rail transit consists of trams, light rail, rapid transit, people movers, commuter rail, monorail, suspension railways and funiculars.
6.Energy generated by using wind, solar, small hydro, tides, geothermal heat and biomass is known a non-conventional energy. All these sources are renewable process of energy generation and do not cause environmental pollution.
Explanation:
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