Social Studies, 02.01.2022 22:30 briannagiddens

What is VISUAL INDICATION What is CHEMICAL INDICATION
What is PHYSICAL INDICATION
What is BIOLOGICAL INDICATION
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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.

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Answer from: onewaydemon

What is VISUAL INDICATION :a natural or a synthetic chemical that changes its colour on the addition of an acid or a base.

For example - phenolphthalein is a colourless indicator which remains colourless in acidic medium, but turns pink upon addition of a base.

What is CHEMICAL INDICATION :any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration of a chemical species, such as an acid or an alkali in a solution.

For example - methyl yellow, which imparts a yellow colour to an alkaline solution.

What is PHYSICAL INDICATION : an indication of bodily condition that can be directly perceived (as by auscultation) by an examining physician.What is BIOLOGICAL INDICATION :a microbiological test system consisting of a standardized viable population of specific microorganisms (usually bacterial spores) inoculated on a carrier contained within its primary pack ready for use and providing a defined resistance to a specified sterilization process.

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the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances

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Ithink it's c selection but i don't really know.

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What is VISUAL INDICATION What is CHEMICAL INDICATION
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