Fossil fuel consumption is vey harmful to the environment. When the fossil fuel is consumed, then a large amount of chemical substances are released which affect the environment. For example: Burning of fossil fuel release a large amount of harmful substances like carbon dioxide, carbon monoxide, dust, smoke, lead etc. The carbon dioxide present in the atmosphere trap a large amount of solar energy and this results in the increase of the average temperature of the earth, resulting in global warming.
The age of the solar system, derived from the study of meteorites (thought to be the oldest accessible material around) is near 5 billion years; that of the Earth is taken as 4.6 billion years. The oldest rocks on Earth are dated as 3.8 billion years.
