Which two essential elements of geography are missing from the image above A. "Human geography" and "Physical geography

B. "Location" and "Movement"

C. "Places and regions" and "Physical systems"

D. "Regions" and "Physical geography"

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.”

Answer b is the answet

Answer collision and mountain formation;