when two air masses coming together the boundary between the two is called a weather front
Answer:
Chain surveying is the type of surveying in which only linear measurements are made in the field. The main principle of chain surveying or chain triangulation is to provide a framework consist of a number of well-conditioned triangles or nearly equilateral triangles. It is used to find the area of the field.
Explanation:
Answer:
Correlation is the act of identifying relationships between two or more events in history.
Explanation:
A is not correct because it is representing a fact or theory of what has happened in the past.
B is not correct because it represents a situation where the raltionship is strictly in the manner of one thing resulting in another thing, whereas without the first one the other ones would not exist.
C is not correct because it represents a situation where things are dependent on each other to occur.
D is correct because it specifically explains and shows the relation between two or more events in history.
