Answer:
Very low or non existent
Explanation:
It is highly unlikely for people to buy ice cream when the temperature is 0 degrees Celsius (32 degrees Fahrenheit), as this is well below freezing point. Ice cream is typically associated with warm weather and is more likely to be purchased during the summer months. Therefore, it is safe to assume that the sale of ice cream would be very low, if not non-existent, when the temperature is 0 degrees.
Other factors such as the location and culture can also play a role in determining the sale of ice cream. In some countries, ice cream may be consumed year-round regardless of the temperature, while in others it may only be popular during certain seasons or holidays. However, even in warmer climates, it is unlikely that ice cream sales would be high when the temperature drops to 0 degrees.
In summary, the sale of ice cream when the temperature is 0 degrees is likely to be very low or non-existent.