প্ৰাকৃতিক অঞ্চলপ্ৰাকৃতিক দৰ্শন
প্ৰাকৃতিক গেছ (Assamese)
Contributed by: Abhijit Kalita on 2012-06-11
1. Natural gas (also called fossil gas, methane gas or simply gas) is a naturally occurring mixture of gaseous hydrocarbons consisting primarily of methane (97%) in addition to various smaller amounts of... from wikipedia.org