Biogas is a mixture of 56% methane gas (CH4), 40% carbon dioxide (C02) and rest, a mixture of H2, H2S and N2. It is produced by digestion, Pyrolysis and hydro gasification in a specific plant called as Biogas Plant. Biogas plants are of various types like — Janata biogas plant, Dean Bandhu biogas plant, Khadi and Village Industries Corporation (KVIC) type biogas plant, Pragati Design biogas plant and Chinese biogas plant.
The dry weight of organic matter produced by plants, their derivatives and wastes are called as BIOMASS. The biomass includes crop residues, plant parts, body parts of dead animals and animal wastes. As biomass is created due to photosynthesis by plants, so energy from biomass or bio wastes is regarded as another form of solar energy.
Water is the principal constituent of our body. Water is chemically an inorganic, transparent, tasteless, odourless, and colourless. It is the main constituent of the hydrosphere of the earth.
Most animals of the same kind have same body parts. But their body parts differ in size, shape, colour and functions.
The scientists of Punjab Agricultural University (PAU), Ludhiana worked for ten years to develop a new High Yielding Variety of onion entitled POH-1.
The government have initiated a number of measures to increase the productivity of milch animals. It has resulted in an increase in the milk production significantly from the level of 102.6 million tonnes at the end of the tenth plan (2006 -2007) to 127.9 million tonnes at the end of the Eleventh plan (2011 -2012. The Annual Growth Rate of milk production was about 5% in 2011 -12 compared to 2010 -11.
Games are essential for physical and mental development of children.
An activity that serves as one’s regular source of livelihood is called as occupation
Sex organs of plants are found inside flowers. A male reproductive organ is called as Androecium and a female sex organ is called as Gynoecium.
Growth of human population, fast but unplanned industrialization and irresponsible behavior to environment are causing imbalances in the local, regional, national and global environment. These are causing not only local but global problems in the environment.
The application of scientific knowledge for practical purposes, especially in industry, is called as technology.
