Last seen: Sep 30, 2021
(a) is more in rainy season since damp air would mean more air mass hitting the blades Explanation: About 75% methane is present in bio-gas.
(c) Glass sheet Explanation: Glass lid of solar cooker trapped the heat energy inside the box.
(c) dispose off spent fuel safely Explanation: The waste product obtained from nuclear power plant is highly radioactive material and harmful for ...
(b) temperature difference at different levels in the ocean Explanation: Energy of warm surface water used to vaporise the low boiling point liqu...
(c) Solar energy Explanation: Solar energy leads to least environmental pollution in the process of its harnessing and utilisation.
(b) Sun Explanation: Sun is the ultimate source of energy directly or indirectly, all the form of energy are desired from solar energy.
(a) Potential energy possessed by stored water is converted into electricity Explanation: The stored water behind the dam has a potential energy ...
(d) low energy protons only Explanation: Heavy nucleus such as uranuim-235, when bombarded with low energy neutrons split into lighter nuclear wi...
(c) molten lava on the surface of earth Explanation: The heat energy trapped in the certain region of earth’s crust is called geo thermal energy.
(a) Volatile liquid like ammonia
(d) both (a) and (b) Explanation: The waves are generated by a strong wind due to solar energy across the sea.
(a) narrow opening to the sea Explanation: Tidal energy is harnessed by constructing a dam near the shores across narrow opening it.
(b) ocean in the form of tidal waves Explanation: The energy produced by the surge of ocean water during high and low tides due to difference in s...
(c) solar cells Explanation: A large number of solar cells connected together in a particular arrangement to deliver useful electrical power is ca...
(b) silver Explanation: Silver is the best conductor of electricity.
(b) silicon Explanation: special grade silicon is used for making solar cells.
(c) increase efficiency Explanation: Reflectors (mirror) are used to focus the sun rays along with heat radiation inside the box to achieve high t...
(b) 100-140°C Explanation: The box type solar cooker have a range 100-140°C.
(d) All of the above are disadvantages. Explanation: All the points given are the disadvantage age of using solar energy.
(d) All of these Explanation: All are the factors that responsible for the blowing of wind.