A chemical\'s solubility and persistence are two characteristics that affect how
ID: 232908 • Letter: A
Question
A chemical's solubility and persistence are two characteristics that affect how much harm it can cause to humans and the environment. Explain each of these terms and how they affect the toxicity of chemical. What is biological magnification and what type of chemical (describe it in terms of solubility and persistence) can be biomagnified? 3. Carbon dioxide is a colorless, odorless gas with no negative physiological effects on humans. Explain why it is considered an air pollutant. 4. What are two major effects of climate change that have been predicted? What kind of harm would they cause? 5. What are two major ways to reduce the amount of waste we buy in landfills or incinerate?Explanation / Answer
answer1 - persistance organic product are organic compounds that are resistant to environmental degradation thorugh physical, chemical and biological and photolytic processes. Chemical solublity of chemical and persistance of those chemical have adverse effect of human being as well as other organisms and also to the environment. they are commonly used as insectisides, pestisides, solvents, pharmaceuticals and industial chemicals. Exposure of these chemicals may cause developmental deffects, chronic illnesses and death. these are capable of endocrine disruption with the reproductive system, the central nervous system and immune system. these chemical also cause air, water and soil pollution when they mix into these things. these substances are deadly poisonous.
Biological magnification is the increasing the concentration of toxic substance within each successive link in the food chain. the increse of these chemical substance occur as result of -
persistance, food chain energetics, low or non existent rate of internal integration or excreation of the substance
there are chemical substance that can be biomagnify. these are lipophilic and not easily degraded.
DDT
Hexachlorobenzene
toxaphane
monmethylmercury
answer 3 - carbon dioxide is colourless, odourless gas and it don not have much negative physiological effects on the humans. but still is considered as main source of air pollution here are reason because of those reason we considered it as air pollutant
carbon dixode with other gases like methane, nitrous oxide , hydroflorocarbon, perflorocarbon, and sulfur hexafluoride are green house gases. their presence in the atmosphere cause trap of heat in the earth atmosphere which leads to the increase in the surface temperature of the earth which may lead to global warming . Cabon dioxide are long lived and well mixes in the atmosphere otherwise all the heat will go to outer space.
answer 4- here are change that will be predicted after cliamate changes
1- the earth surface and ocean temperature will be rise, melting of glacier ice sheet will be more intensely, ocean will become more acidic
2- frost free season and growing season will increse in length or duration.
3- changes in the precipitation patterns
answer 5-
4 more drought and heat wave will generated
5- Hurricanes will become more stronger and more intense
6 sea level will rise 1-4 feet by the end of this centuary
answer 5- the ways to reduce the amount of waste we bury in landfills are following
1- set aside another garbage than can be recycled instead
2- purchase the product from recycled store and after using the prodect return to it to recycle centre .
3- recycle old batteries and electronics
4- follow 3R procedure REUSE, RECYCLE, REDUCE
5- Boycott the plastic material and polythene bags.
6 do use paper unnecessarily go for e-paper or e document.
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