There are lots of errors! I'm sure that you will improve as time goes on. Here's a list of the most important corrections needed:
• Proofread your work. Proper nouns should always begin with a capital letter.
• We often put the verb before the noun when asking a question: Why are leaves green? Why is the sky blue?
• "in recent years...."
• In this case you would use people, not peoples, and you should treat it as plural (people are, not people is).
• China is full of . . . (China is a singular noun.)
• I think all of these are reasons . . .
The good news is that I understood everything except "many steps of Chinese." If you can get your point across, that's something to be quite proud of!