HARD
10th CBSE
IMPORTANT
Earn 100

Draw a neat diagram of a biogas plant and label
(a) Inlet of slurry
(b) Digester and
(c) Gas outlet.

Important Questions on Sources of Energy

MEDIUM
10th CBSE
IMPORTANT
Describe how hydro energy can be converted into electrical energy. Write any two limitations of hydro energy?
MEDIUM
10th CBSE
IMPORTANT
Explain geothermal energy. How can it be harnessed to produce electrical energy?
MEDIUM
10th CBSE
IMPORTANT
State two major constituents of biogas. List any four characteristic of biogas on account of which it is considered to be an ideal fuel.
MEDIUM
10th CBSE
IMPORTANT
Mention why it is not possible to make use of solar cells and make use of all our energy needs. State three reasons to support your answer.
MEDIUM
10th CBSE
IMPORTANT
Explain the principle and working of a biogas plant.
EASY
10th CBSE
IMPORTANT

(a) Draw schematic labelled diagram of a box-type solar cooker.
(b) Name two components of the solar cooker which are responsible for increasing the temperature inside a solar cooker.
(c) Explain their function.

EASY
10th CBSE
IMPORTANT
(a) Describe how a hydropower plant produces electricity?
(b) Write two advantages of hydroelectric energy.
MEDIUM
10th CBSE
IMPORTANT
(a) List three factors responsible for wind.
(b) State three limitations in harnessing wind energy.