What is the cactus environmental pressures?

Cacti face several environmental pressures, including extreme temperatures, limited water availability, and poor soil nutrients. Their adaptations, such as thick, waxy skins to reduce water loss and modified leaves as spines to deter herbivores, help them survive in arid conditions. Additionally, competition for resources with other plants and climate change impacts, like altered rainfall patterns, further challenge their survival. These pressures necessitate resilience and adaptation for cacti to thrive in their ecosystems.