China was the leading trade partner
Everything that happens in one system influences another system. For example, when there are tectonic plate movements and volcano activity in the litosphere, that transfers to the seas and oceans which is the hydrosphere, which creates tsunamis. Tsunamis can then flood communities and change the land mass.
Answer:
Newton
Explanation:
The newton (symbol: N) is the International System of Units (SI) derived unit of force. It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.