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Dear student,
Please find below the answer:

b. Measurement comes from the word measure. The act of measuring a physical quantity with reference to a given standard is called measurement.
The SI system of unit is the international system of standard units or to measure physical quantities. Some of the standard units in this system are Metre  (m) for length, kilogram (kg) for weight, Second (s) for time etc.

d. The quantity of matter contained in an object is known as mass. Its unit is Kilogram.

e. CGS system of measurement is one in which unit for length is centimetre, mass is the gram, time is second. In FPS systems, the unit for length is foot, mass is pound, time is second.

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