Como calcular a densidade demografica do mundo

:calculate the sum of the interior angles of a 13-sided polygon.

All of the following actions are examples of civil disobedience, except a.) refusing to pay an unfair tax b.) refusing to use government services c.) participating in a protest march d.)planning a riot to destroy a government riot

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves