Question

Fill in the Blanks
u Pokhran
. Biogas is a mixture of
The device used for obtaining energy from
flowing water is called ......
........... is the best fuel in terms of energy
liberated per gram of fuel.
Coal gas is a mixture of ........... and
The efficiency of the modern solar cells from
selenium is up to
Fly ash is used to make ......​

Answer 1

a).methane and carbon dioxide

b).hydroelectric power

c).methane

d). hydrogen and methane

e). 25 %

f).portland cement