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Classfication of waste: Depending upon the physical states, there are five types of wastes (1) Solid waste, (2) Liquid waste, (3) Gaseous waste, (4) Toxic waste, (5) Non-Toxic waste:-  (1) Solid waste: It is the solid portions of the discarded materials. It includes mainly domestic or household wastes like,kitchen waste with leftover cooked food, plastic, empty bottles, cans, broken glasses, discarded tyres,tubes, building rubbish, fly ash, carbon dust including various industrial wastes. (2) Liquid waste: Fluids as waste water, fats, oils or grease (FOG), used oil, excess manure,       hazardous household liquids, sewage effluents etc., are categorized as liquid wastes. (3) Gaseous waste: It includes uncontained airborne emissions and effluents, that may consist of particulate matter,dust, fumes, gas, mist, smoke, vapour or any combination. Examples of gaseous waste are particulate dust, gas flaring, lime dust, cigarette fumes, asbestos dust, waste gases and acid fumes.  (4) Toxic wa

  concept of waste   what is concept of waste ? waste is an undesired or unwanted substance which is of no use .It is a substancewhich is discarded after primary use or it is worthess, or defective term waste is often subjective because wate to one person is not necessarily a waste to another. waste  is also referred to as rubbish, trash or garbage which is the useless or worthless material stuff to be trown away. an idea for generation of local waste or waste from your locality would be useful for your general awareness. local wastes include mainly municipal waste generated by :-

  An account to igneous rocks Granite: Continental crust is mainly formed of this Ba rock. It is composed of quartz, feldspar, mica and ro homblende and the colour of this rock varies from white, grey to pink. This is an impermeable rock. Granite is m very much resistant to erosion as it is heavy and very hard. Granite is coarse granied as the magma is cooled and solidified very slowly in the earths interior (diameter >3 mm). Landforms developed on the regions of granite rock are generally rounded and domal.

                Basic properties of life class="separator" style="clear: both; text-align: center;"> 1.  Respond to stimuli The power to respond to stimulus is known as irritability. It may take place due to the change of both external and internal environment. For example, the leaflets of Mimosa pudica (sensitive plant) close up in pairs and droop down when touched. 2.  Growth   Young organisms grow in size and attain maturity. When the rate of anabolism exceeds the rate of catabolisms new organic substances are added to the protoplasm as a result the living cell increases in size and the organism grows. 3.  Metabolism In the protoplasm of a living cell many of the chemical reactions are always taking place. The changes that occur due to these reactions are required for the 1.1.1 Concept about Orig maintenance of body functions. The sum total of all these biochemical reactions taking place within a living cell is called metabolism. 4.  Respiration Respir

 Life and it's diversity 

 What is density ? Density of a matter is its mass per unit volume. It is measured by the measure of its mass contained in one cubic centimetre of its volume. Density of a matter gives us an idea of how close, or how far apart, its molecules are. An iron plate feels heavier than an aluminum plate of the same volume, simply because iron is denser than aluminum.