Which characteristics do polar and dry climates have in common? check all that apply.

high altitude

very cold winters

contrasting seasons

very little precipitation

few, specialized plants

I just took the review on edge.  The answer is very little precipitation and few, specialized plants

Answer b.adi admin hope this

Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”