It is called phosphorescent substances.
It provides a history on how plants and animals have changed over time
Answer:
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Explanation:
At -40 °C (-40 °F), however, it can hold no more than 0.2 percent. When a volume of air at a given temperature holds the maximum amount of water vapour, the air is said to be saturated. Relative humidity is the water-vapour content of the air relative to its content at saturation.
