Energy is needed in the lifestyle o

Energy is needed in the lifestyle of the human. Petroleum is one of the main energy source used to produce electricity. It is causing the occurrence of pollution and global warming. We should be aware of this constraint. Therefore, energy conservation, it is essential to practice in order to use energy not wasted. Petroleum fuels are widely used, which may be shortage in near future, there are three conscious conservation plans: using of renewable energy, reducing the use of petroleum, and practicing accordance with government policy.