The answer of theis would be d.
Answer:
Trade was very important for China because it helped China get extra surpluses exchanged for valuable supplies. China was able to get what it needed by trading what it had. Therefore trade was very helpful and played a major part in China's growth in history. It helped China grow wealthier and stronger.
Explanation:
Answer:
Human population growth has gotten larger and larger as time goes on. The first 1 billion people were in 1803. It has taken 120 years to get to another billion people. It is changing by 80 million people born a year. At 10 billion, we will most likely fall short of food supply due to the overpopulation.
