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The production of plastics involves a process called polymerization.

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Introduction

Plastics Plastics consist of a variation of materials deriving from petroleum. Plastics are made up from various combinations of elements. Plastics are easily moulded into shapes and degrade slowly. It is these qualities of plastics that make plastics so useful for many purposes. However the production of plastics has many environmental consequences. The production of plastics involves a process called polymerization. Polymerization is the process whereby multiple monomers are joined in cohesion to form a polymer chain. These monomers are extracted from crude oils. The polymerization process causes the liquid monomers to change into solid polymers due to the increase of molecular weight. The production of plastics involves the extraction of monomers from crude oil such as petroleum. Crude oil is a non renewable resource so it is therefore imperative that the production of plastic is minimized. There are many different types of plastic packaging. ...read more.

Middle

They also release harmful chemicals such as chlorine, carbon monoxide and benzene into the atmosphere which has a negative environmental effect. Some plastics cannot be reused or recycled and are not biodegradable. This leads to a waste disposal and a huge environmental problem. The improper disposal of plastics has a negative impact on ecosystems because it destroys natural habitats and animals. Plastic takes a long time to biodegrade so it remains a threat in the environment for an extended period of time. There is no other material that can be an alternative for the use of plastics in packaging despite the various issues that plastic poses on the environment. We must rather look towards minimizing the effect plastic inhibits on our environment and at cleaner methods for the disposal of plastic waste. ...read more.

Conclusion

The Atmospheric Pollution Prevention Act is aimed at preventing pollution through the incineration of waste. The availability of sufficient waste disposal systems is a huge step in solving the environmental problems associated with the improper disposal of materials. It is all very well having the systems available but there is still the issue of people utilising these systems. Litter is a huge problem in South Africa and a reason for this is that people are uneducated, ignorant or just don't care about the effects of improper waste disposal on the environment. It is crucial that people and communities are educated about the proper disposal of waste otherwise there is no point having the waste disposal systems. Education and awareness is the key. All South Africans must be made aware about waste disposal and the negative effects it imposes on the environment and South Africans must be encouraged to participate in making South Africa a cleaner more environmentally friendly country. ...read more.

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Response to the question

The student has answered the question well, in using a case study to back up the point that they were making strengthens their argument. The scientific language used is appropriate and answers the question, but to improve they could have ...

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Response to the question

The student has answered the question well, in using a case study to back up the point that they were making strengthens their argument. The scientific language used is appropriate and answers the question, but to improve they could have explained some of the key words such as 'monomer'.

Level of analysis

The analysis of the case study is good as it goes beyond the obvious. The chemistry side of this essay is good, as the words are not used in excess and are just used to illustrate the point being made and are not overly used which can sometimes be interpreted as arrogance by the examiners.

Quality of writing

The spelling and grammatical areas of this essay are fine.


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Reviewed by cheekymokeyxxx 02/07/2012

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