Answer:
The answer is The Isthmus of Suez
Explanation:
The Isthmus of Suez unites Asia with Africa, and it is generally agreed that the Suez Canal forms the border between them. Two narrow straits, the Bosporus and the Dardanelles, separate Anatolia from the Balkan Peninsula. Hope this helped :)
The correct answer is number two
it is 10 because you have to set up an equation to get the answer
Challenges for growing crops are you don't know if it will be successful, you have to have enough water, the dirt has to be fertile, and the weather may affect how the plant grows.