Question

Essay on clean India green indiaaa

Answer 1

Lately the phrase “going green” has become a part of everyday discussion and debate. People are being told to turn off the lights, buy energy-saving appliances, and drive less. What people are not being told is why, specifically. Global warming is the increase of the Earth’s average temperature. Greenhouse gases are the cause of this problem; carbon dioxide, nitrogen oxide and methane (1). Normally the earth’s atmosphere lets these gases in but does not release all of it. The excess gases keep the plant warm enough to sustain life. However over time, the atmosphere has sustained damage from chemicals, like the ones released in fossil fuels, and now the planet is heating up too much too fast. Even just a few degrees …show more content… 

Most hybrids run use internal combustion engines and electrical motors (2). Internal combustion engines require fuel to create a combustion reaction which powers the engine. An electric motor uses electrical energy to produce mechanical energy which can then run the motor. An on-board rechargeable energy storage system (RESS) stores enough energy, which is also rechargeable, to run the electric motor (2). To lower fuel consumption, the RESS regenerates power, or energy, through regenerative breaking or sometimes through the combustion engine. Regenerative breaking uses some of the energy produced by the car when accelerating and stores it. This is why hybrid cars cannot compete in the market for speed. In more modern models, a mechanism allows for energy to be taken from the combustion engine to charge the cars battery or electrical motor (2). In the sense of “going green”, hybrids reduce idle emissions by shutting off the ICE during idle times, like stop lights and traffic, and then restarting it when the car needs to move. A smaller and more efficient engine also cuts back on power compared to large engines where all the parts may not be used, but need to be powered, thus reducing emissions (2). Other benefits from HEVs are noise-level reduction and air pollution.