Which characteristics describe the troposphere? Select two options.

is the innermost layer
contains the ozone layer
has the highest air pressure
spans 12–50 km above Earth
is a good place for planes to fly

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.

Freshwater ecosystems

Yes he is right they are bacteria