Why is trade an essential part of the culture and economy of the Pacific Islands?

Match the graph type to its description. 1. uses symbols to describe information pie 2. compares different quantities at the same point in time line 3. compares increases and decreases in a quantity over a period of time bar 4. shows the relationship of parts to each other and to the whole pictograph

In the diagram, δgef and δhef are congruent. what is the value of x?

Identify the youngest layer in the figure ( have to click one letter)