12.56 because you multiply the radius by 2 then multiply that by 3.14
Answer:
Population pyramids are used by demographers as a tool for understanding the make-up of a given population, whether a city, country, region, or the world. Learning about, using, and understanding these pyramids is an important part of AP Human Geography and AP Environmental Science.
Explanation:
I hope this help
Answer: They live in moist environments and have xylem.
Originally it was made from cardboard and wood but now its stone and brick
This breed is called metamorphic rocks - rocks formed in the Earth's crust as a result of metamorphism, ie the change of sedimentary and igneous rocks due to changes in physical and chemical conditions
