Another term for explicit memory is and another term for implicit memory is :

declarative;non-declarative

Explanation:

Explicit memory: In psychology, the term explicit memory is also referred to as declarative memory, and is considered to as a subdivision of the long-term memory. It needs intentional or conscious thoughts in an individual, for example, recalling naming an animal that he or she has seen yesterday.

Implicit memory: In psychology, the term implicit memory is also referred to as non-declarative memory and is one of the subdivisions of the long-term memory that can not be recalled consciously or intentionally by an individual. It helps an individual to perform skills, habits, and automatic behavior, for example, cycling.

the answer is a. monarch

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.