Answer: A. Geologist : rocks around and under the hot spring
B. ecologist : relationships between organisms and the hot spring
C. sociologist : human behavior around the hot spring
D. meteorologist : atmosphere and weather around the hot spring
A hot spring a natural phenomena or human induced phenomena, in which the hot groundwater comes out from the earth's crust, which is heated geothermally by heat present in the geosphere.
A. Geologist : rocks around and under the hot spring
A geologist is a scientist which will likely to find cause of the hot spring that is related to the types of rocks, gases if any present inside the crater from where the water comes up.
B. ecologist : relationships between organisms and the hot spring
An ecologists is a scientists who observes the interaction of living beings with their external physical environment and also interaction that occurs among the species. An ecologists will likely to find the impact of hot spring on the organisms living around the hot spring.
C. sociologist : human behavior around the hot spring
A sociologists is a professional who studies the interaction among different population of the human beings. A sociologist will likely to find the response or reaction of a human society towards the hot spring.
D. meteorologist : atmosphere and weather around the hot spring
A meteorologist is a scientist who studies the weather conditions. The meterologist will likely to find the impact of the hot spring on the atmosphere. As the water liberated is extremely hot, the impact of hot water on the atmosphere and weather conditions can be studied by the meteorologist.