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8. How can you calculate the dependency ratio from a population pyramid?(Maximum 150 2 points words) Your answer 9. More complex networks have a beta value greater than 1. Justify the statement. 2 points Your answer 10.Talbia is planning to apply for her PhD in the USA. Her deadline is 1 February 2022. She 2 points has to send her papers to her University before the deadline. Inaya, sister of Talbia has just completed her PhD and is planning back to Bangladesh. She is thinking of sending some of her furniture to her homeland. Can you suggest the mode of transportation for both of the sisters? Why does the mode of transportation vary? Your