Correct option is A
Cattle dung is considered a conventional source of energy. It has been used traditionally for cooking and heating in many rural areas, especially in India and other developing countries.
Cattle dung is considered a biomass source of energy. It is used in its dried form as a fuel in many rural households for cooking and heating purposes.
It is a traditional, renewable resource that can help meet energy needs, especially in rural and agricultural areas.
Biogas can also be generated from cattle dung, which is another way this resource contributes to energy production.
Solar power: Solar power is a non-conventional source of energy, as it relies on modern technology to harness the energy from the sun.
Atomic energy: Atomic energy is a non-conventional source of energy, derived from the nuclear reactions of atoms.
Geothermal energy: This is a non-conventional energy source derived from the heat stored inside the earth.