Hey there!
The correct answer to your question is the last option.
It takes 1,000 years to form fertile soil. It takes a very long time to form, especially in dry locations.
Hope this helps you.
Have a great day!
Answer:
Moving sand dunes might eventually cover/bury the farm, and planting vegetation in the way can stop the dunes from moving as much
the answer is A. it is a region of low population density
