Explanation

The Yangtze River is the longest river in Asia.

It is the third longest in the world.

It is length over 6,300 kilometers (4,000 miles) long.

It is originates in the highlands of Tibet.

It is flows into the East China Sea at Shanghai, the world's busiest port.

It is considered the heart of China.

Additional information:

Yellow River: The second longest river in Asia.

It is located in China

Mekong: A river that flows through China, Myanmar, Laos, Thailand, Cambodia, and Vietnam