POLLUTION by https://padlet.com/ywmzne9b3/pollution en-us 2018-02-05 17:12:52 UTC 2023-06-22 21:50:53 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Planets.png INTODUCTION ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228250257 Pollution is a necessary evil of all development. Due to lack of development of a culture of pollution control, there has resulted a heavy backlog of gaseous, liquid and solid pollution in environment. It has to be cleaned. Pollution control is a recent environmental concern. Pollution is a man-made problem, mainly of effluent countries.This phenomen is widespread in most places of our country.


]]> 2018-02-05 17:44:00 UTC https://padlet.com/ywmzne9b3/pollution/wish/228250257 DEFINITION ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228263125 Pollution is an undesirable change in the physical, chemical or biological characteristics of air, water and soil that may harmfully affect the life or create potential health hazard of any living organism. Pollution is thus direct or indirect change in any component of the biosphere that is harmful to the living components and in particular undesirable for man, affecting adversely the industrial progress, cultural and natural assets or general environment of living society.]]> 2018-02-05 18:05:28 UTC https://padlet.com/ywmzne9b3/pollution/wish/228263125 ILL EFFECTS ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228265825 Our mother planet is getting more and more polluted, so be sure that the consequences will not be good at all :
* farmers spray toxic substances as a result the food we eat becomes contaminated 
* ships pilloilin the sea so fish and sea life die .
* we live in overcrowded and noisy towns that's why more and more people suffer from earaches and headaches. 
* because of car exhaust and gases children have breathing problems such as asthma.
* because of food contaminated people suffer from poor health and weaknesse
* ozone holes in the upper atmosphere can allow excessive ultraviolet radiation from the sun to enter the earth causing damage to trees and plants


]]> 2018-02-05 18:09:30 UTC https://padlet.com/ywmzne9b3/pollution/wish/228265825 POLLUTION IN OUR COUNTRY ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228300790 Comparing Tunisia to other countries it is clear that our home is not that clean and ideal . many places are horribly damaged.
Taking as example Gabes. This southern  city is extremly polluted. Gabes is known by its huge chemical  factory  of Phosphate which leads to many environment problems like insupportable bad smell due to air pollution that threats citizens health
 and water pollution ....
moving to the downtown you can notice the overuse  vehicules which is hazardous and harmful]]> 2018-02-05 19:04:54 UTC https://padlet.com/ywmzne9b3/pollution/wish/228300790 TYPES OF POLLUTANTS ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228300978
The various principal pollutants which pollute air, water and land are as follows:
(1) Deposited matter. Smoke, tar, dust, etc.
(2) Gases. Oxides of nitrogen (NO, NO,), sulphur (SO,), carbon monoxide, halogens, (chlorine, bromine, iodine)
(3) Acids droplets. Sulphuric acid, nitric acid etc.
(4) Fluorides
(5) Metals. Mercury, lead, iron, zinc, nickel, tin, cadmium, chromium etc.
(6) Agrochemicals. Biocides (like pesticides, herbicides, fungicides, nematicides, bactericides, weedicides etc. and fertilisers.
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(7) Complex organic oxidants. Benzene, ether, acetic acid, benzpyrenes etc.
(8) Photochemical oxidants. Photochemical smog, ozone, peroxyacety nitrate (PAN), peroxybenzoil nitrate, nitrogen oxides, aldehydes, ethylene etc.
(9) Solid domestic wastes
(10) Radioactive waste
(11) Noise 

]]> 2018-02-05 19:05:11 UTC https://padlet.com/ywmzne9b3/pollution/wish/228300978 VIDEO_POLLUTION ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228364434 2018-02-05 21:21:19 UTC https://padlet.com/ywmzne9b3/pollution/wish/228364434 CONCLUSION ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228372220 2018-02-05 21:48:34 UTC https://padlet.com/ywmzne9b3/pollution/wish/228372220 VIDEO ywmzne9b3 https://padlet.com/ywmzne9b3/pollution/wish/228385629 2018-02-05 22:42:37 UTC https://padlet.com/ywmzne9b3/pollution/wish/228385629