Final answer:
The temperature at dawn being 6°C away from 0 means it can be either above or below zero. Answer D) is correct, as it can be +6°C or -6°C, indicating it's not specific to a direction from the freezing point on the Celsius scale.
Step-by-step explanation:
The temperature at dawn being 6°C away from 0 implies that it could either be 6°C above freezing (above 0°C) or 6°C below freezing (below 0°C). The correct answer to the question is D) The temperature at dawn can be either above or below 0°C, depending on whether it's positive or negative 6°C. This is because the term 'away from' does not indicate direction above or below zero; it only specifies the numerical difference from zero on the temperature scale.
On the Celsius scale, the freezing point of water is 0°C. If the air temperature is below 0°C, water vapor in the air can condense and freeze, releasing heat and often preventing the temperature from dropping further. Conversely, if the air temperature is above 0°C, the water remains in a liquid state. Therefore, knowing whether the temperature is above or below 0°C is crucial for understanding environmental conditions, such as assessing the likeliness of frost or the behavior of water vapor.