There is a U-shaped region called The Fertile Crescent.
Hope this helps!
Answer:
because there might be changes in the future which could make the estimates unreliable for example war or decline in economy
Explanation:
For lumber it is where it is rainy but not flooding in rain because if it is flooded in rain it will have rotten layers inside making it bad to use and will not be safe to use.
What exactly do you need help with? X