Concept:Solid waste:Consist of everyday items that are discarded. ?these items are discarded as unwanted and useless.These are range of garbage materials arising from:human activities.industrial activitiesresidential activitiescommercial activities ??Solid waste disposal:to the process of collecting and treating solid wastes.?Explanation:The major method of releasing the gaseous pollutant is -Incineration:It is the disposal of waste by burning.Waste is burned at high temperatures in a furnace.Then leftover ash is disposed of in landfills.Thus, Incineration releases air pollutantsAdditional InformationComposting:It is used to decompose leaves and vegetable scraps.These are converted into manure.Which is valuable for plants and soil.It can also be done at home.Vermicomposting:It is similar to composting.But instead of natural process, earthworms are used to accelerate the process.landfills:This is the most common way for disposal of solid waste.A large pit is dig in the ground and the waste is dumped into that pit.When the waste decay in these gases like:methanecarbon dioxide carbon monoxideoxides of nitrogen are released in to the atmosphere.When the landfill get filled, it is used as parking space or ground.