Answer:
crystallized, fluid
Step-by-step explanation:
The theory of fluid by Raymond Cattell illustrates that Intelligence is divided into fluid intelligence and crystallized intelligence.
Fluid intelligence is the ability to reason and solve problems due to inherent skills such logic, pattern recognition, and abstract thinking. On the other hand, Crystallized Intelligence refers to the knowledge garnered through experience skills and education.
When faced with mathematical problems, we utilize fluid intelligence but when we encounter tasks that require comprehension or grammar, we adopt the crystallized intelligence.. Fluid intelligence usually decline with age, especially from 20 years but for Crystallized intelligence, because of accumulation of knowledge, it is maintained or increased throughout one's life