Questions

Because of its being pollution free and  combustion efficient, Hydrogen gas is  called fuel of future. Because of its origin in marshy places, Methane is called as 'Marsh Gas'.

Commonly, the different attributes for a file structure are naming,size, identifier, a level of protection, supported file types and location for the files.

The layer of air around the earth is known as Atmosphere. And this atmosphere has 4 layers like troposhere, stratosphere, ionosphere and mesosphere.

Basically India's unemployment is structural in nature. It is associated with the inadequacy of the productive capacity to create enough jobs for all those able and willing in india. Not only is the productive capacity  (largely capital stock) much below the needed quantity, it is also found to be increasing at a slow rate. As against this, additions to labour force are being made at a fast rate on account of rapidly rising population. Thus, the absolute level of unemployed persons is rising every year. 

Natural gas is primarily composed of methane, but also contains ethane, propane, and heavier hydrocarbons.

Natural gas is a colorless, tasteless, odorless, and non-toxic gas. Because it is odorless, mercaptan is added to the natural gas, in very small amounts to give the gas a distinctive smell of rotten eggs. This strong smell can alert you of a potential gas leak.

It also contains small amounts of nitrogen, carbon dioxide, hydrogen sulphide and trace amounts of water.