Answer:
Large scale solar generation was mostly developed in the 1970s and 1980s, and is considered a clean energy because of its lack of emissions.
Both the Silk Road and the Indian Ocean Trade Network were networks of trade roads connecting those who wanted goods with those who already had them. There were many trade routes in the Indian Ocean, just as there were many trade routes along the Silk Road.
The trading network in the Indian Ocean, however, was larger, wealthier, and comprised of a wider range of elements. A lot less people are familiar with the Indian Ocean trading network than the Silk Road. Swahili, coastal cities, Islamic empires in the Middle East, India, China, and Southeast Asia were a few of the civilizations and empires that traded along this network.
Know more about the indian ocean trade network here
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The answer is (a) hope this helps!
It is no longer a major economic center of china