The answer is
Unitary system : All government power is held by a central government
They can't hear an echo in small room because in it the sound can't be reflected back. For an echo of a sound to be heard,the minimum distance between the source of sound and the walls of the roomshould be 17.2 m. Obviously,in asmall room echoes cannot beheard.
Answer:
a luminous ball of plasma
Answer:
Series
Explanation:
Because I listen to my science teacher