Answer :
Final answer:
The Eastern Seas trade route was the most important British lifeline between the West and Orient in years gone by, facilitating trade and the exchange of goods with colonies in Asia.
Explanation:
The most important British lifeline between the West and Orient in years gone by was the Eastern Seas trade route. This route connected Britain with its colonies in Asia, particularly India and China. It played a crucial role in facilitating trade and the exchange of goods such as spices, tea, silk, and porcelain.
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