Question

A "System" means
1) A group of practices that can be identified and distinguished from other particles
or groups is called a system.
2) A group of practices that can't be identified or distinguished from other particles
or groups is called a system.
3) A group of practices that can be identified but can't be distinguished from other
particles or groups is called a system.
4) All the above​

Answer 1

Answer:

Option (b) is right .....

Answer 2

Explanation:

A group of pcan't be distinguished from otherractices thparticles or groups is called a systemat can be identified but