Discuss the causes of ozone depletion ​

Awatershed is a piece of land that drains water into a particular stream, lake, or river. which of the following factors often negatively impacts the water quality in a watershed? a.) wetlands b.) pollution c.) irrigation d.)rainfall

Adeveloping nation's economy is based on a developed nation's economy is based on stay tuned- i may post some more questions from my study guide : )

Asap! ! ! western china, northern china and southeastern mongolia are all located in what climate zone? tropical wetdesert humid subtropical humid continental