Question

What is VISUAL INDICATION

Answer 1

1. Visual indicators can be described as those markers that give visible signs.

• The signs could be in the form of a color change.

2. Chemical indications are substances that change due to the presence or the absence of chemicals such as acids or alkali.

3. Physical indication are the changes that can be easily seen in a body through examination.

4. Biological indications are organisms in an environment whose characteristics shows that there are certain environmental conditions present.

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Answer 2

Answer:

1) visual indication -- Visual indicators are one such example. A visual indicator is a “marker” that helps users quickly locate an item that has an important distinctive attribute within a list of otherwise similar objects

2) chemical indication -- A chemical indicator is a substance that undergoes a distinct observable change when conditions in its solution change. This could be a color change, precipitate formation, bubble formation, temperature change, or other measurable quality.

3) PHYSICAL INDICATION -- an indication of bodily condition that can be directly perceived (as by auscultation) by an examining physician.

4) BIOLOGICAL INDICATION -- Bioindicators are species, groups of species or biological communities whose presence, abundance and biological conditions, in real ecosystems or through the use of laboratory toxicity tests, to make inferences about the quality of the environment.

Explanation:

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