He wants others to know what the greasers are really made up of, and basically the life of a greaser.
I would go with,
The stories time period
The characters environment
And where the story takes place
Or if it is an autobiography, then you can also look at where the author is from! I hope this helps!
Just search about south Korea and the put in your own words to write it , Hope you can.
My best wishes , All the best
You begin with the largest to the smallest. First revise the overall structure. make sure you have introductory paragraph, followed by supporting paragraphs. then summary and closing paragraphs.
After the paragraphs are correct then you can go in and revise sentences that do not belong. either reword or remove.
The final step is the words. making sure they are spelled and used correctly
Technology can greatly advance our knowledge in sciences, such as making the medical process more effective and speeding it up.