Question

countries like Dubai, Saudi Arabia ,Abu Dhabi have become very rich in recent years what could be the reason?

Answer 1

the reason is that they have well of crude oil

Answer 2

Answer : -

Countries like Dubai, Saudi Arabia, Abu Dhabi have become quite rich in recent years for they are a few of the top 5 oil producing countries in the world. They export oil all over the world. They have them abundance due to the fact that they have plenty of oil deposits thereby boosting the country's economy.