Answer :
Final answer:
The shape of this sign provides advance warning of a no-passing zone ahead.
Explanation:
The shape of the sign, a triangle with a red border and a white interior, provides advance warning of a no-passing zone ahead. This sign is typically placed on roads where it is not safe to pass other vehicles.
It indicates that there will be a stretch of road where passing is prohibited due to limited visibility or other hazardous conditions.
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