Because the real quench distance is only the minimum figure @ TDC (which is not the point of maximum risk), and there is measurable pumping loss getting those few molecules in and out of that small space, and as the clearance expands the loss is reduced.
Why is nonpoint source pollution potentially more harmful than point source pollution? a. Nonpoint source pollution disrupts the water cycle. b. Nonpoint source pollution is difficult to regulate. c. Nonpoint source pollution comes from more than one source. d. Nonpoint source pollution is more damaging to living organisms than point source pollution. Nonpoint source pollution generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage or hydrologic modification.
explain why point-source pollution is easier to control than non point-source pollution. Point-source pollution is to control a single source, such as a factory, a water waster treatment plan, or a leaking oil tanker.This is easy because you know where the problem is coming from.resh water mainly comes from lakes rivers or a shallow zone beneath the earths surface and most of the water on earth is salt water which is found in the oceans. While the largest percentage of fresh water is from ice caps and glaciers. Fresh water is also found in rivers, lakes, and earths surface in aquifers.