Name the process by which energy is produced in a nuclear reactor.

Name the major fuel component of biogas. What are its other combustible components? Draw a simple labelled diagram of a fixed dome type biogas plant. What is the use of the residual slurry and why?

In a box-type solar cooker,what is the range of temperature that can be achieved in two or three hours?

What is the use of a glass sheet in solar heating devices?

Compare the energy produced during the fission of a uranium atom with the energy produced due to the combustion of a carbon atom from coal.

Name two conventional sources of energy.