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Pollution
Pollution is the process of giving out contaminants such as smoke and carbon dioxide, and too much of a certain product such as light, heat and sound that both cause harm to the environment.
8,185 Questions
There is a chemical that the scientists or the people cleaning the spill r thinking of using it is supposed to i think absorb the oil or harden it so it can be cleaned i don't remember but the reason thy might not us it is because it is not necessarily good for the environment and for humans
How much toilet roll does the world use in the world?
Per annum? If so: Each person uses approximately 49 rolls yearly there are approximately several billion (7,000,000,000) people on the Earth at present so 49*7,000,000,000 = 343,000,000,000 every year.
BOD and COD definitions and relationship?
BOD is a measure of, the amount of oxygen that bacteria will consume while decomposing organic matter under aerobic conditions. Biochemical oxygen demand is determined by incubating a sealed sample of water for five days and measuring the loss of oxygen from the beginning to the end of the test. Samples often must be diluted prior to incubation or the bacteria will deplete all of the oxygen in the bottle before the test is complete.
COD does not differentiate between biologically available and inert organic matter, and it is a measure of the total quantity of oxygen required to
oxidize all organic material into carbon dioxide and water. COD values are always greater than BOD values, but COD measurements can be made in a few hours while BOD measurements take five days.
Why should we be concerned with how human activities affect the quality of water?
whether they accumulate or disperse, will degrade the environment
Essay writing About Pollution Diseases?
Use the typhoid outbreak n London England in the 1800's as a major example. Features sanitary sewage, deductive reasoning, demographic studies, case zero and a led to a new way of addressing pollution caused diseases.
Then there are the mercury and PCB related diseases in Japan in the '70s if you want to be more modern.
State the disadvantage of using BOD values?
As much as "Standard Methods" has a reproducible procedure for BOD5 the procedure is dependent on the activities of microorganisms and they can cause variations beyond the control of the lab worker - temperature, O2 diffusion, toxics etc can all affect the outcome.
This is especiall true in ding round robin testing where a lab may be getting consistent results but not the same as another lab.
What do burning garbage cause?
The act of burning garbage causes the release of toxins into the air. This makes it difficult for people to breathe and can cause physical harm.
How long does it take for a body to decompose after death if it has not been embalmed?
The process of decomposition is the same for everyone, but how much time it would take varies if the body is in a casket buried in the ground. Some may decompose within a few months, and some may take many years. There's no cut-and-dry answer.
