Answer:
the amount of water and the cleanliness of the water may differ in different regions. different water companies could be charging extra just because of the region of in which the water is coming from.
There might be limited water in some places and in others there might be plenty of water
Explanation:
You cant settle in deserts due to lack of water and scarcity of food, which led to the Saharan regions being less populated. Hope this helps.
Answer:it is human environment interaction farming and agriculture