The first step in treating drinking water, called involves passing water through a series of screens.

The right answer is Filtration.

A water filter is composed of a filtration system that aims to separate the water from the solid particles (residues) by passing it through a porous medium, which allows only the liquids and the finer solid particles to pass through. as the filter holes (porosity). The water that comes out of this filtration system is rid of solid particles larger than the pores of the filter.

Some water filters are designed to make drinking water (very fine filtration, less than the size of a microbe).

The first step in treating drinking water, called filtration, involves passing water through a series of screens.

Explanation:

I got it right on Edge 2022.

Explanation:

Metabolites are the different kinds of the substances which are essential to metabolism of the organism.

Metabolites produced by the plants can be categorized into the primary metabolites and the secondary metabolites.

The primary metabolites have important role in survival of plant and play an active role in the respiration and the photosynthesis.

On the other hand, the secondary metabolites are not involved in normal growth and the development of plant. Although absence of these type of metabolites can lead to impairment of survivability of plant in long run.

Secondary metabolites are produced mostly by the plants for the defense purposes. They include steroids, alkaloids, phenolics, essential oils, resins, tannins, lignins, flavonoids, etc.