Question

what is natural and artificial indicator like China rose Litmus Paper and turmeric

Answer 1

natural indicators are dyes (colour) extracted from plants and animals like red cabbage, turmeric juice, litmus paper etc.
where as artificial indicators are those dyes which are prepared in laboratory from different types of chemicals. eg methyl orange, phenolphthalein.

Answer 2

Natural indicators are dyes extracted from plants and animals . For example china rose , turmeric, etc
Artificial indicators are dyes which are prepared from different chemical in laboratory by the humans. For example methyl orange ,etc