Some suggest that students should study in a variety of places. this suggestion is based on research showing that people remember material better if they learned it in a number of different locations, compared to studying the same amount of time in one location. the suggestion solves a problem raised by

The encoding specificity principle

Explanation:

The encoding specificity principle states that memories are more easily recalled if external conditions at the time of recollection are similar to those present at the time the memory occurred.

This means that studying in many different places are more likely to trigger a quicker recall of the information learnt, as opposed to studying in one place.

c. spiritual heath is subjective.

the second awnser

explanation:

because it is for complex problems