Question

please clear the meaning this time i m studying thanks (the power is divided between a central authority and its various constituent units

Answer 1

For a country to function there must be laws, powers, etc. This power is divided into central authority and it's various constituents. which means that the power is exercised by the central authority (The president, The prime minister) and it's constituents are state govt ( Chief ministers, deputys, various other ministers), private bodies etc.

Answer 2

the power is divided between a central authority and its various constituents unit means balance of power between state and Central Government