Question

Give odd one for following with reason

Encircle the odd one out. Give reasons for your choice.

1. Coal, diesel, kerosene, CNG, LPG and biogas
2. Solar cell, windmill, thermal power station, biogas plant and solar cooker
3. Wind energy, hydroenergy, tidal energy and geothermal energy
4. Solar cooker, solar heater, microwave oven and solar furnace

Answer 1

Dear Student ,
1. Biogas
As the others are fossil fuels .
2. Thermal power station .
As in thermal power station coal s used and it is fossil fuel and others are not .
3. Hydro energy .
As others are renewable energy sources .
4. Microwave oven .
As in the other types direct sunlight is used .

Regards