Answer:
A Bedouin is a ethic group of nomadic Arabs who have historically inhabited the desert regions in North Africa, the Arabian Peninsula and much more.
Explanation:
Success in trade always deals with advertisement. In this case, the spread of Islam help distribute it's teachings and beliefs making more people contribute to trade.
When used as nouns, barter means an exchange of goods or services without the use of money, whereas trade means buying and selling of goods and services on a market.
He put the interest of the British ahead of the Egyptian people
Answer: The statement here is absolutely correct.
Explanation: In order to understand that why this answer is correct, I will provide you with a little insight of the history. The term vassal originated with the emergence of feudalism in the middle ages, at that time all the land was the possession of the ruling Aristocrat. The Aristocrat will reward their lands to vassals expecting that they will protect the Aristocrat in return. Whenever, some vassal will fight for the Aristocrat, the Aristocrat will provide him with a land and expect him to protect the the Aristocrat for rest of his life.