The answer is DNA replication
Loamy soil is ideal for gardening because it contains c-mostly sand with very little clay or silt.
Loamy soil is good for gardening since this soil can retain water and nutrient, but if the water is too much it still can be drained away. The soil contains mostly sand which was bigger particle than silt and clay.
The population would decrease because the high death rate and low other rates would lead to more deaths than births, and not many other people would be entering the country/place, so the population would decrease
