Question

place these steps in the water treatment process in order from first to last. the water flows into a tank to be disinfected. flocs are removed from the water. particles become trapped in filter layers. sand and microbes bind to form flocs.

Explanation:

Step1: Formation of flocs

First, sand and microbes bind to form flocs. This is a key step in the initial treatment where impurities start to aggregate.

Step2: Removal of flocs

Then, flocs are removed from the water. This helps in getting rid of larger aggregated impurities.

Step3: Filtration

Next, particles become trapped in filter layers. This further refines the water by removing smaller particles.

Step4: Disinfection

Finally, the water flows into a tank to be disinfected. This kills any remaining harmful microbes.

Answer:

1. Sand and microbes bind to form flocs.
2. Flocs are removed from the water.
3. Particles become trapped in filter layers.
4. The water flows into a tank to be disinfected.