Biogas is produced under anaerobic conditions. The process is denominated as anaerobic digestion. The major constituent of biogas is methane (55 - 70%), CO₂ (30 - 45%) and some traces of gases such as H₂S and ammonia.

Hampi was the last capital of the last great Hindu Kingdom of Vijayanagar. Its fabulously rich princes built Dravidian temples and palaces which won the admiration of travellers between the 14^th and 16^th centuries.

Rodentia Muridae is the scientific name of Mouse. Scientific names of squirrel and lizard are sciuridae and lacertilia respectively.

The northern plain has been formed by the interplay of the three major river systems namely the Indus, the Ganga and the Brahmaputra along with their tributaries. It is broadly divided into 3 sections the western part of the northern plains is referred to as Punjab plain formed by the Indus and its tributaries, the ganga plain extends between Ghaggar and Teesta rivers and to its east particularly in Assam lies the Brahmaputra plain. 

There are 6 players in one team in a volleyball match. 

Kishtwar National Park (KNP) is located in the Kishtwar district of Jammu and Kashmir, India. This national park was made to protect the endangered species of snow leopards and was given the status of national park in 1981.

The sigmoid colon (pelvic colon) is the part of the large intestine that is closest to the rectum and anus. It forms a loop that averages about 35-40 cm in length. 

Sulphurous acid is the chemical compound with the formula H₂SO₃. There is no evidence that sulfurous acid exists in solution, but the molecule has been detected in the gas phase.

Note: Chemical formula for Sulphuric acid is H₂SO₄.

Article 112 empowers the Government of India to announce Financial Statement of the country i.e. the Budget every year before the beginning of the financial year.

Sattriya Nritya, is a major Indian classical dance. It is a dance - drama performance art with origins in the Krishna - centered Vaishnavism monasteries of Assam, and attributed to the 15th century Bhakti movement scholar and saint named Srimanta Sankardev.