What is the greatest challenge for middle east based on its physical characteristics?
a. pollution
b. lack of usable water
c. no fertile soil
d. cooperation from other countries

~Hello there! ^_^

Your question: What is the greatest challenge for Middle East based on its physical characteristics? 

Your The greatest challenge for Middle East based on its physical characteristics is the lack of usable water.

The answer is option B.

Hope this helps~

Answerlife is suffering;

Hey there  jaylajakara15p8gvfy! question:   approximately what per cent of russia is used for permanent cropland? answer: b) 10%hope this ! -jayden