Answer:
First:
The Himalayas edge southwestern China, encompassing Tibet and Nepal and forming a natural barrier along the border of India.
Second:
The East China Sea extends to the east to the chain of the Ryukyu Islands; north to Kyushu, which is the southernmost of Japan's main islands; northwest to Cheju Island off South Korea; and hence west to China. ... The East China, South China, and Yellow seas.
Explanation:
I only remember those 2, sorry I couldn't help with all.