Difference between physical and non physical quantity​

Physical quantities are all those quantities which are physically present and they can be measured. These are divided into two main categories as follows. ... Non-physical quantities are those quantities which cannot seen neither can they be measured.

not physical A baseball manager recognizes a nonphysical talent, hustle, as an essential gift of great players and great teams.— Frederick P. Brooks Jr. … a cycle of creation and destruction that determines all reality, physical and nonphysical.

Here in this question length, time and amount of substance are basic physical quantities; they are not derived from any other quantity, whereas density is a derived physical quantity from mass and volume (length). So, from the above explanation it is clear that density is not a basic physical quantity.

Explanation:

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the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

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