Dubai
is challenged by all of the following environmental factors except

The answer is lack of natural resources

Dubai's primary natural resources are petroleum and natural gas. Dubai government also earn money from tourism but more than 90 percent of these resources are found in the land of desert area. The extreme hot weather was a challenge but it has been covered up by the use of chilled water plants. Dubai is very rich in natural resources and it is the most prominent way of economy for the country.

The first bike: $ 80

The fourth bike: $ 20

The sixth bike: $ 50

The seventh bike: $ 60

Explanation: