It is when either of the two times in the year, the summer solstice and the winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days.
Connect
Mainly because the other answers don’t go well together with the statement
hardness, luster, color, streak, specific gravity, cleavage, fracture, and tenacity.
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.