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Explain any three principles of green chemistry.

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1. Environment protection is the prime concern which has lead to the need for designing chemicals that degrade and can be discarded easily. These chemicals and their degradation products should be non-toxic, nonbioaccumulative or should not be environmentally persistent.

2. This principle aims at waste product being automatically degradable to clean the environment. Thus the preference for biodegradable polymers and pesticides.

3. To make the separation and segregation easier for the consumer an international plastic recycle mark is printed on larger items. 

4. There is a dire need to develop improvised analytical methods to allow for real time, in process monitoring and control prior to the formation of hazardous substances.

5. It is very much important for the chemical industries and nuclear reactors to develop or modify analytical methodologies so that continuous monitoring of the manufacturing and processing unit is possible. 

6. It is needed to develop chemical processes that are safer and minimize the risk of accidents. It is important to select chemical substances used in a chemical reaction in such a way that they can minimize the occurrence of chemical accidents, explosions, fire and emissions.

7. For example : Chemical process that works with the gaseous substances can lead to relatively higher possibilities of accidents including explosion as compared to the system working with nonvolatile liquid and solid substances.

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