Which of the following is not a good option in the generation of electricity in the hydroelectric power plants?
Which of the following is not a consequence of deforestation ? (a) increase in soil erosion (b) increase in earth's temperature (c) decrease in rainfall (d) decrease in floods
Which one of the following statements about power stations is not true ?
(a) hydroelectric power stations use water to drive turbines
(b) in a power station, turbines drive generators
(c) electricity from thermal power stations differs from that produced in hydroelectric power stations
(d) in hydroelectric power stations and thermal power stations, alternators produce electricity