what were the major religions practiced in the second region?
Islam, Buddhism and Christianity
Southeast Asia
Countries in Southeast Asia practice many different religions. By population, Islam is the most practised faith, numbering approximately 240 million adherents, or about 40% of the entire population, concentrated in Indonesia, Brunei, Malaysia, Southern Thailand and in the Southern Philippines. Indonesia is the most populous Muslim-majority country around the world.

There are approximately 205 million Buddhists in Southeast Asia, making it the second largest religion in the region, after Islam. Approximately 38% of the global Buddhist population resides in Southeast Asia. Buddhism is predominant in Vietnam, Thailand, Laos, Cambodia, Burma and Singapore. Ancestor worship and Confucianism are also widely practised in Vietnam and Singapore.

Christianity is predominant in the Philippines, eastern Indonesia, East Malaysia and East Timor. 
the sino-roman relations are associated with which two countries? The Roman Empire and Han Empire of China what product was exported to the former from the latter? Silk what was the name given to the route they traveled for that trade? Silk Road what places did the route connect? East Asia and Southeast Asia with South Asia, Persia, the Arabian Peninsula, East Africa and Southern Europe
wiki:19581165
Southeast Asia [SEP] Religion
Countries in Southeast Asia practice many different religions. By population, Islam is the most practised faith, numbering approximately 240 million adherents, or about 40% of the entire population, concentrated in Indonesia, Brunei, Malaysia, Southern Thailand and in the Southern Philippines. Indonesia is the most populous Muslim-majority country around the world. There are approximately 205 million Buddhists in Southeast Asia, making it the second largest religion in the region, after Islam. Approximately 38% of the global Buddhist population resides in Southeast Asia. Buddhism is predominant in Vietnam, Thailand, Laos, Cambodia, Burma and Singapore. Ancestor worship and Confucianism are also widely practised in Vietnam and Singapore.