Final answer:
Removing groceries from a shopping bag is a closed motor skill because the environment is stable and predictable. Using scissors to cut out paper shapes demonstrates fine motor skills. It is true that credit cards should not be placed near permanent magnets.
Step-by-step explanation:
The categorization of motor skills often depends on the stability of the environment where the skill is performed. Closed motor skills are executed in predictable, stable environments where changes do not occur rapidly. On the other hand, open motor skills happen in environments where there are constant changes and the performer needs to adapt movements in response. Removing groceries from a shopping bag would typically be a closed motor skill because the environment is stable and predictable; the items do not change location or move unexpectedly. Therefore, the statement provided is true.
As for the second question, using scissors to cut out paper shapes requires precision and control of small muscles, making it an example of fine motor skills. These skills are necessary for tasks that involve intricate movements of the fingers in coordination with the eyes.
Finally, the statement regarding magnetic fields is true. It is recommended to keep credit cards with magnetic strips away from permanent magnets to avoid demagnetizing the strip and rendering the card unusable.