Mesopotamians created irrigation systems to protect against damage from too much or too little water and to ensure a stable supply of water for crops and livestock.
Answer:
Chan can use biodiversity as a tool by choosing different plants, animals and organisms for his research.
Explanation:
Biodiversity can be defined as the variety of life, which includes all plants, animals, humans, microorganisms, and much more. It includes all lifes and their interactions. Biodiversity is one of the most complex, as well as vital feature of our planet. A human depends a lot on biodiversity. The food we eat, the water we drink, the air we breath in, all depends on biodiversity. Like thatm it also contributes to a person's health. So Chan should study different organisms and their interaction with a huuman for his research.
The population of the sub Sahara desert will grow in the years to come and has been growing for a while now. I know this because in the graph the line is climbing at the same crate constantly.
The basement because that’s where nothing will fall on you like glass or anything and it’s stable because it’s underground