Answer:
People have many types of food, however we can use the simplest classification of food to answer this question: the food which does not need any factory to produce it, and the food that need to be made by people in facturies. As any factory has effect on the environment because is causes pollution, and so it affects the earth's climate ( through global warming) - the food choice of people is very important for all of us.
Explanation:
This is just my own opinion.
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I hope this answer can help you. Have a nice day!