SUN - main source of energy, WIND - rotates the windmill to generate electricity, WAVES - rotate the turbine in the ocean to generate electricity, ENERGY - ability to do work, WATER - rotates the turbine in the dam to generate electricity, BIOMASS - substance from plants or animal faeces, FOSSIL FUEL - example petroleum and coal, NUCLEAR - has substances such as uranium,

द्वारा

लीडरबोर्ड

दृश्य शैली

विकल्प

टेम्पलेट स्विच करें

ऑटो-सेव पुनःस्थापित करें: ?