1) because of their design, the amounts of water and free oxygen (o) in modern landfills are kept to a minimum. explain how the lack of water and oxygen affects the breakdown of waste within a landfill.

Ibelieve it is the 2nd answer, create gardens on all rooftops. let me know if this .

The correct answer is:   [b]:   "physical systems" .

"central america is subject to fierce which drop large amounts of on the region. another threat in the region is activity such as earthquakes and volcanoes caused by the shifting of the earth's large waves called may result in mass destruction. frequently crops are wiped out causing in the region." where is the question