Why do we need a point of reference on the ground when measuring azimuth and altitude

Which of these reasons describes why spain was motivated to compete with portugal

In sparta, boys entered military training at age 14. true or false

Question 1 of 10 2 points which phrase best describes an event's "historical context? " o a. the social or political setting in which it occurred b. the total number of people it affected o c. the unfair interpretations people have made about it o d. the different views people hold about it