Sanitation generally refers to the provision of facilities for the safe disposal of human urine and faeces. Due to explosion in population, government is unable to provide proper sanitation through underground drainage system. Poor sanitation contaminates the ground water which further causes diseases like cholera, typhoid, polio, meningitis, hepatitis and dysentery. Foul smell from open drains causes inconvenience and respiratory disorders in human beings. on site sewage disposal systems are the systems which collect human excreta and store it in a hole or a pipe and later directed into a sewage treatment plant. other methods for sewage disposal are septic tanks, chemical toilets, composting pits and vermi composting toilets.

Peer Review Articles on Sleep Deprivation

Advantages: septic tanks are suitable for places such as hospitals, isolated buildings and cluster of houses where there is no sewerage. Water seeps through the ground affecting trees and swimming pools aeroplanes and trains usually have chemical toilets. A chemical toilet uses chemicals to disinfect human waste and remove its bad odour.

A composting toilet is a system that converts human waste into organic compost and usable soil. This happens when micro organisms such as bacteria and fungi, and macro organisms such as earthworms oxidise organic waste to break it down into essential minerals. They end up in emitting foul smell, encourage breeding of insects and increase health hazards. A vermi composting toilet is a process that involves earthworms which treat human excreta.

Organisations such as sulabh international have developed a twin pit pour flush toilet system that is being used by ten million people every day. The waste from these toilets flows through covered drains into a biogas plant for the generation of biogas and bio fertilisers. Public places such as railway stations, bus depots, airports and hospitals generate lot of waste, which leads to diseases.

To prevent the breaking up of diseases, certain measures are to be taken and awareness among people should be created.

how many bricks of size 22cm x10 cm x7cm are required to construct a wal.

class 7 students studying in icse affiliated schools can now study and excel in academics with ease, with meritnation.com. Meritnation is a fitting study module for students to learn, understand and remember all that they learn here, while they have fun too. Icse class 7 study material on our website consists of interactive exercises and revision notes that make sure students retain what they study once. Some of the significant attributes offered to icse class 7 students are: our study package for class 7 students aims at motivating people to study the basics and fundamentals of all concepts, instead of just mugging up information.

With the excellent medium of audio visuals to educate students, we have achieved our goal in quite a big way. On our website, icse class 7 students are not just studying subjects to appear for exams they can use the knowledge equally well in further academic endeavors too! awareness and rules. Pollution became a popular issue after world war ii, due to radioactive fallout from atomic warfare and testing. Then a non nuclear event, the great smog of 1952 in london, killed at least 40 people. This prompted some of the first major modern environmental legislation, the clean air act of 1956. Pollution began to draw major public attention in the united states between the mid 1950s and early 1970s, when congress passed the noise control act, the clean air act, the clean water act and the national environmental policy.

India: the water prevention and control of pollution act was enacted in 1974 to provide for the prevention and control of water pollution. The air prevention and control of pollution act was enacted in 1981 and amended in 1987 to provide for the prevention, control and abatement of air pollution in india. There are similar regulations were enacted to bring the natural balance of the human lives. new pollutants: many of us aware that there is tower signal for mobile of gigabite range carrier frequencies. Nuclear power plants is the next requirement of the growing economy of many developing nations in the present power crisis situation. reward or incentive system for pollutants: in previous time many government body of the world imposed rules for panalising the companies which were accounable for major emmission of wastes. There are many incentive programs and credit policy for controlling and checking pollutants.

Martin Luther King Jr Essay Help

There are two types of trading programs currently used in the united states: emission reduction credits ercs and capped allowance systems i.e. The cap is equal to the total number of allowances or permits allocated to a group of polluters. These allowances are distributed among the individual polluters and the number of allowances held by each firm sets the limit on the amount of pollution they have the right to emit. is pollution is uncontrollabe: compromise between growth and pollution: when the level of contaminants in air becomes so much that air becomes harmful for living beings it is called air pollution. Causes of air pollution: the main causes of air pollution are as follows: a exhaust from automobiles: most of the automobiles use fossil fuels. B exhaust from factories and power plants: coal is the main fuel being used in factories.

C chlorofluorocarbons cfcs: these are compounds of carbon and halogens and are used as refrigerant. Ozone layer works like a shield and prevents the harmful ultraviolet radiations from reaching up to the living beings. D suspended particulate matters spms: some fine particles remain suspended in the air.

Greenhouse effect: greenhouse gases trap solar radiation which increases the overall temperature of the atmosphere. Scientists have predicted that many coastal cities would be completely submerged in the near future because of glacial melting. Increased instances of flash floods and erratic weather are being attributed to global warming.

Respiratory diseases: cases of respiratory diseases like asthma are on the rise because of increased levels of air pollution. Acid rain: acid rain happens because of the presence of oxides of nitrogen and sulphur in the atmosphere. An order by the supreme court of india directed all the factories to shift from the vicinity of taj mahal. After that order, only battery operated vehicles are allowed to be driven near this monument. Reduced forest cover means there are less number of trees to convert carbon dioxide into oxygen. Some of the ways to prevent air pollution are as follows: switching to cleaner fuels like cng. The delhi government fitted cng kit in all the dtc delhi transport corporation buses after a court order.

When the level of contaminants in water reaches to such a level that water becomes harmful for living beings, it is called water pollution. Causes of water pollution: some of the causes of water pollution are as follows: untreated sewage: in india, this is a common practice to discharge untreated sewage and effluents into the nearest water body. Age old practices: many people in india use a pond or a river for bathing, for defecating and for washing clothes.