Answer:
Marco polo worked as an administrator for 17 years.
Explanation:
Upon reaching China, Marco Polo entered the court of powerful Mongol ruler Kublai Khan, who dispatched him on trips to help administer the realm. Marco Polo remained abroad for 24 years
The first is D and the second is B
The energy goes up beacsue warmer air goes up while cold air goes down. This is called convetion.
I need more context to answer. What are the statements?