Answer(১):- 1.shanghai,china
2.Singapore
3.Shenzhen,China
4.Hong Kong
5.Ningbo-Zhoushan,China
6.Busan,south Korea
7.Qingdao,China
8.Guangzhou,China
9.Jebel Ali, Dubai
10.Tianjin
Answer(২):- 1. Wsaka 2.Okland 3. Chittagong 4. Akiyab 5.Kolkata 6.Koraci 7.Colombo 8.Bangkok 9Newyork 10.Alekjandria
Answer(৩):- 1) shanghai, china
2)busan, south korea
3)Qingdao, china
4)port klang, malaysia
5) Antwerp, belguim
6) Xiamen, china
7) Long beach, U S A
8) Velebcia, spain
9)Hanshin ports, japan
10) santos, brazil
Answer(৪):- 1.Shanghai
2.Ningbo-Zhoushan
3.Singapore
4.Rotterdam
5.Tianjin
6.Guangzhou
7.Qingdao
8.Qinhuangdao port
9.Hong kong
10.Busan
