Ice wedging is the type of weathering. this works because the ice in the crack expands causing the rock to crack or expand even more
The RENAISSANCE was a time of renewed learning in the arts and sciences.
Answer:
b. The researcher has not ruled out the possibility that Y might cause X
Explanation:
In the given system, there is a theory that shows the relationship between the variables 'X' and 'Y'. The variable 'X' shows life satisfaction in a given population while the variable 'Y' shows how stable a democratic institution is. Therefore, the occurrence of the variable 'Y' can lead to the occurrence of the variable 'X'.