Name three substances organisms can be trapped in and eventually result in a fossil.

Organisms can be trapped in amber, as has been seen by many prehistoric insects. Another substance would be rock, as shown by the trilobites that are well-known to exist in places like Ohio. Third, organisms can be trapped in ice, such as through the glaciers that were part of the North American continent for many thousands of years.

Long term continuous groundwater monitoring, especially with warning systems and anthropic activity monitors

Aneutral atom must have the same number of neutrons and protons? no, they must have the same number of protons and electrons