Question

Why do we need sources of energy?

Answer 1

Energy is very important in today's world. For example, we use different energy sources to generate the electricity we need for our homes, schools, businesses and factories. ... We also use energy to run cars, planes, trains, buses and motorcycles.

Answer 2

oil , gas and coal- makes a sustainable contribution to co2 emissions this is why we need energy sources that will not lead to further increase in the amount of Co2 in earth's
atmosphere such as wind, hydropower, geothermal energy.
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