Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term. Hope this answered your question
The principal that states that younger rocks lie above other rocks in the superposition principal.
Answer: Sustainability is important for a very simple, very straightforward reason: we cannot maintain our quality of life as human beings, the diversity of life on Earth, or Earth’s ecosystems unless we embrace it. There are indications from all quarters and from the smallest to the largest scale that sustainability is something we must address.
Some areas could be Alaska, Northwest Territories, and Yukon
The creation of irrigation systems by some societies is an example of which of the six elements of geography. From the choices we have here, the correct answers are environment and society. The six elements of geography are places & regions, environment & society, world in spatial terms, physical systems, human systems, and the uses of geography.