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1.) A torch battery has chemical energy stored in it. When the battery is connected in a circuit, this chemical energy is changed into electrical energy, which is then carried by the electricity from the battery to a light globe where it can be changed into light.

Explanation:

d.

ans  A torch battery has chemical energy stored in it. When the battery is connected in a circuit, this chemical energy is changed into electrical energy, which is then carried by the electricity from the battery to a light globe where it can be changed into light.

e.

ans  Solar energy can be converted to electricity in two ways: Photovoltaic (PV devices) or “solar cells” – change sunlight directly into electricity. ... Solar Power Plants - indirectly generate electricity when the heat from solar thermal collectors is used to heat a fluid which produces steam that is used to power generator.

f.

ans The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. The only way to use energy is to transform energy from one form to another.