Why are seconds sources important to the study of history

Is the world's largest archipelago and has the fourth largest population of any country. singapore the philippines indonesia malaysia

What motivated germany to make an alliance with austria-hungary?   a.  fear of aggression from the united states      b.  fear of aggression from france      c.  the desire to invade russia      d.  fear of aggression from england

Both the nervous and endocrine systems send electrical and chemical signals for internal communication. select the best answer from the choices provided t f