Answer: GIS technology and collection of health data.
Explanation:
If a doctor is studying the effects of the diseases in the country he can make use of the geographic data to study the occurrence of the diseases in the past and with the help of the geographic data could analyze it through the use of the Geographic Information System technology that helps to study the areas on the world map that shows similar patterns of infections.
So the use of the technology can help in understanding problems of the disease which are generally related to the most and humid tropics as compared to the cold polar climate that has a different type of diseases and flues etc.
Also the collection of real-time data on the patients the doctor can match the symptoms and help in studying the further root cause of the problems.
 
        
             
        
        
        
A fan-shaped deposit <em>(of sediment</em><em>)</em> at the mouth of some rivers is called b) an alluvial fan.
A <em>dune</em> is a mound of sand shaped by wind.
A <em>delta</em> is a sort of "tree" of splitting rivers at the mouth of a river.
        
                    
             
        
        
        
Answer:
Earthquakes -the physical phenomena of ground shaking, surface fault rupture, and ground failure and, in some coastal areas, tsunamis. Smaller earthquakes, aftershocks, may follow the main shock, sometimes several hours, months, or even several years later.
Volcanoes-serious damage is restricted to small areas compared with the extent of damage from large floods or great earthquakes. Yet volcanic eruptions can take a high toll in human life and property. 
Explanation: