1. An atmospheric layer that protects Earth from harmful solar radiation (1 point) O acid rain
O biosphere
Ogreenhouse gasses
Oozone
2. The maximum population that an area can support (1 point)
O carrying capacity
Odensity
O logistic growth
O sustainability
3. Contaminants in the air, ground, or water that come from a single identifiable cause
Oeutrophication
Opoint-source pollution
Osunspots
Owaste incineration
4. Management of land and resources for future human use (1 point)
O conservation
O migration
O precipitation
O preservation

barrio is a spanish word meaning neighborhood. in spain, several latin american countries and the philippines, the term is also used officially to denote a division of a municipality while a ghetto is a part of a city in which members of a minority group live, typically as a result of social, legal, or economic pressure. the term may have originally been used in venice to describe the part of the city to which jews were restricted and segregated.

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a best description that resulted a division among labor in the early farming communities in their period was there was a change in their society in terms of having social roles to develop and change that led complications and divisions in the society.