Page 36 - 08_Social_Studies and Population Education Book 8_2078 Revised and Updated Edition

Lesson

5 ENERGY

Electricity is one of the most important
sources of energy. Industrial development

is not possible without development of
electricity. Electricity plays vital role in
the modern world, we use electricity for

various purposes. Refrigerator, fax, oven,
heater, rice cooker, etc can be run by
electricity. Industries require machinery Solar Panel
and other heavy tools to produce many
manufactured goods. Electricity is a must

to run these machinery and heavy tools.

We get these energies from different
sources like generator, hydropower, solar

power, bio-gas, woods, oil, coal, natural
gas, windmill, batteries, water mill, etc.
We also get the energy from nuclear plant, Hydro Power Dam
petroleum, biological and farm waste

material, etc.

Energy plays an important role in our daily
life. It is also needed for household work, to
operate an office, to run medical equipment

in hospitals, to run industries etc. For
this reason energy has become one of the
essential parts of human life. Developed
countries consume more energy. That’s why Windmill

energy development is related to human peace and prosperity and economic
development.

36 SOCIAL STUDIES - GRADE 8