Question

What was significant about the trickling stream of water? ​

Answer 1

Explanation:

It means that a stream of water is flowing slowly, almost like it is dripping expect it is going forward rather than downwards.The word trickle can be used in many sentences, such as "a tear trickled down his face".

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Answer 2

Answer:

Trickling filters (TFs) are used to remove organic matter from wastewater. The TF is an aerobic treatment system that utilizes microorganisms attached to a medium to remove organic matter from wastewater.

Explanation: