How often is it recommended that sand in sandboxes be replaced?
Select one:
a. Every three years
b. Once a year
c. At the beginning of each season
d. Once a month



Answer :

Final answer:

Sandboxes should be refilled annually for cleanliness and safety.


Explanation:

The recommended frequency for replacing sand in sandboxes is once a year. This ensures a clean and safe play environment for children.


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