Question 30 (2 points) The structure and maintenance of all ecosystems results from the types of animals in that ecosystem. types of plants in that ecosystem organisms in that ecosystem. Question 31 (2 points) Discuss the current status of water availability from a global standpoint in terms of availability, sustainability, and future supply in our continual growing population - 40- 70 words. Question 32 (2 points) Gutters and storm sewers in a city are most concerned with the groundwater loop evapotranspiration loop precipitation loop surface runoff loop

In ecosystems, the interactions between different organisms, such as plants, animals, fungi, and microorganisms, play a crucial role in defining their structure and functions. For example, keystone species can significantly impact community dynamics by maintaining the balance within the ecosystem. Without these interactions, ecosystems would falter and potentially collapse. Currently, water availability is a pressing global issue. With shifting climate patterns and an ever-growing population, many regions face serious water scarcity challenges. Sustainable practices and conservation efforts are crucial to ensure adequate supply for future generations, as water demand continues to rise and resources dwindle.