The is composed of all living organisms. hypdrosphere lithosphere atmosphere biosphere

The biosphere is composed of all living organisms

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.

Answer// dinosaurs emerged during mesozoic era;