Answer:
9 cm per year
Explanation:
By measuring the length of the volcanic chain and the time interval between the formation of the oldest structure and the youngest structure, an average speed of plate movement can be calculated.
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.
Using the principles of cross-cutting relationships, you can determine the relative age of rocks found in the ground. The idea behind it is that the geologic feature which cuts another is the younger of the two features, and it had been around for 400 years. It's not very precise but it is good for determining relative age.
Hot spot volcanism is the hot mass of rising heat!