How do challenges facing Brazil's education system also affect the economy?

C. naturally in the environment

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.

Magma is outside the volcano  and lava is inside the volcano.