What would happen to a cactus if its environment suddenly changed to a cool wet environment?

If a cactus were suddenly placed in a cool, wet environment, it would likely struggle to survive due to its adaptations to arid conditions. The excess moisture could lead to root rot and fungal infections, as cacti are not equipped to handle prolonged wetness. Additionally, the cooler temperatures might slow its metabolic processes, further hindering its ability to thrive. Overall, the drastic change in environment would be detrimental, potentially leading to the cactus's decline or death.