A) aluminium B) germanium C) silicon D) silver. Ans : (C)
A) solar pond B) solar cell C) fuel cell D) none of the above. Ans : (B)
A) liquation B) hot cell C) vent D) magma. Ans : (D)
A) sun spots B) fumaroles C) pot holes D) vent holes. Ans : (B)
A) intermittency B) availability in low energy densities C) lack of dependability D) all of the above. Ans : (D)
A) molten salts B) liquid metals C) water-steam D) any of the above. Ans : (D)
A) high rainfall zones B) coastal areas C) hot arid zones D) mountain tops. Ans : (C)
A) inexhaustible energy source B) alternative energy source C) a renewable energy resource D) any of the above. Ans : (D)
A) Tidal power plant B) Geothermal power plant C) Wind energy D) Solar power plant. Ans : (C)
A) creating water wells B) pumping water C) circulating compressed air D) none of the above. Ans : (B)