Answer:
4 is the answer
Explanation:
i am not sure for this question
5. Why is picric acid and tannic acid used in the treatment of burns?
Rocks are classified on the basis of
Answer:
Rocks are classified according to characteristics such as mineral and chemical composition, permeability, texture of the constituent particles, and particle size. This transformation produces three general classes of rock: igneous, sedimentary and metamorphic. Those three classes are subdivided into many groups.
Explanation:
Which food dyes in the diagram on the right only contain one colour?
( Science, Chromatography )