__________ form of energy is stored in plants.
Heat energy
Chemical energy
Mechanical energy
None of these
The main constituent of bio-gas is _________ .
Bromine
Methane
Ethane
Solar cells can convert __________ into __________
heat energy into electrical energy
light energy into electrical energy
chemical energy into electrical energy
nuclear energy into electrical energy
____________ machine is used to produce electricity.
Thermal
Electro
Generator
In generator __________ is converted into ____________
Electric energy to mechanical energy
Fuel energy to preassure energy
Mechanical energy to electrical energy
Pick the odd one out
cooking gas
petrol
petroleum
diesel
Biogas can be prepared from __________.
dog dung
horse dung
cow dung
ox dung
Name the mixture of gas
bio gas
coal gas
none of these
