tracks the evolution of environmental trends, sequences of events, or streams of activities.

B. Environmental monitoring

Explanation:

Environmental monitoring refers to a tool in which the analysis should be made with respect to conditions in an environment and their trends. Also it provides support for establishing a policy, and its implementation

Therefore according to the given situation ,the option B is correct as it fits to the current situation

hence, all other options should be ignored

2,407.2 miles. or 32 hours.