Memory for cognitive and motor skills (e. g., how to study or how to drive a car) that you clearly know even if you cannot describe them are part of memory.

The answer is procedural memory.

Explanation:

Procedural memory is described as a type of long-term memory that is responsible for motor skills (tasks which involve movement, such as riding a bike or playing an instrument).

Procedural memory is automatic, meaning we may noy retrieve or describe the processes consciously. Instead, it relies on implicit memory, which creates blocks of information from past experiences.

procedural

Explanation: Procedural memory is basically memory on how to do certain things (motor skills). It is implicit and a long-term memory that helps the performance of particular types of tasks without conscious thought of these past experiences. Such procedures would include things like driving a car, playing the piano, talking, walking etc. Therefore, memory for cognitive and motor skills that one clearly knows but cannot describe them are part of procedural memories.

the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.