Question

The______system is widely used by scientist in different parts of the world.

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Answer 1

Answer:

SI system (for science in general)

OR

IUPAC system (for organic chemistry, as your question was in the chemistry column.)

There can be other answers as well, you've to specify the Chapter/Lesson you're talking about.

Answer 2

Answer:

SI Syestem

Explanation:

IUPAC syetem