Removing particulates from smokestack emissions is an example of an “end of pipe” remedy.
a. true
b. false

True,

Explanation:

End-of-pipe (EOP) remedy is a treatment process in which the waste matter generated by any system is treated/processed before discharging it into the environment.

These methods are used to remove contaminants that have already formed in the  stream of air, water, waste, etc. at the last stage of process before disposing.

Here in this case also, particulates from the smokestack is removed at the last stage before releasing the emission into the air.

Thus, the given statement is true.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.