Answer:
Advantages.
1.Fertile land for farming especially rice
2.plenty of water for fishing or agrictulture.
Disadvantages.
1.mosquitoes are attracted to water (malaria,dengue).
2.ares are at a constant risk of flood.
I believe the answer is 2.000 004 x 10^6
The third option.
Hope that helps you! :)
The answer would be Plains. Hope this helps have a good day.