Helloo there.., thank you for posting your essay here
Although this essay is good, some improvements are needed as to help you score this even better.
Let me start with the first paragraph. Majority of IELTS students develop their introduction by simply restating the rubric in the question and showing their claims towards the issues given. Here do I see you have successfully done. However, one to two phrases found there can be categorized as hackneyed phrases where almost they are found in students' IELTS essays. A closer look at these phrases:
There is always a discussion that
This essay will discuss that
. They are omnipresent, always somewhere around attached in IELTS essays. I suggest you omit them, and therefore your introduction looks more succinctly
The two topic sentences in the body paragraphs are not developed well, since you have left one keyword: export fruit and vegetables. Such keyword is supposed to be in a topic as well. If you leave it away, you fail to write a relevant topic. Fruit and vegetables transported over a long distance build stable market (topic sentence 1) & The export of fruit and vegetables leads to air pollution (topic sentence 2)
I just share two topic sentences. Please peruse them more closely.
The conclusion paragraph sounds repetitive. Repetition in the conclusion sends you to score a 6.0 in Task Responses. Learn how to give a personal comment which is relevant to the topic discussion prior to ending your essay.
Hope this helps you
Best of luck for your IELTS examEddy Suaib, English Studio Indonesia, IELTS Kampung Inggris Pare Kediri