<span>Mansa Musa fortune by exploiting his country’s salt and gold production.</span>
Answer:
China
Explanation:
The Chinese were the first country credited with the written record of a supernova in 185 BC.
Also, in 1054 AD, they also recorded the observation of a guest star in the sky that was visible during the day for an entire month which turned out to be a supernova.
Answer:
0.02315 kg
Explanation:
converted it from a website i dont know if its correct