Question 15 (2 points) Resource planners have changed the way they think about water and now consider who gets it and how much they should pay how much do we need and where can we get it who gets it and how much they should receive Question 16 (2 points) The best way to sustainably manage natural environments is to maintain the interactions between the members of the ecosystem. ecosystem. stop hunting animals and harvesting the fruits of the plants in the ecosystem Question 17 (2 points) Which of the following human activities have resulted in the conversion of nearly \( 50 \% \) of the Earth's land surface? land converted in the construction of dams to create lakes and reservoirs land converted in the construction of roads and bridges land converted in the construction of all homes and buildings land converted to the production of crop and animal products

Let's analyze each question step by step. ### Question 15 The question is about how resource planners think about water management. The options provided are: 1. Who gets it and how much they should pay 2. How much do we need and where can we get it 3. Who gets it and how much they should receive **Analysis:** - The first option focuses on the economic aspect of water distribution. - The second option emphasizes the need and sourcing of water. - The third option is about equitable distribution. **Best Answer:** The most comprehensive approach to water management would likely involve understanding both the need for water and how it is distributed. Therefore, the best answer is **"how much do we need and where can we get it."** ### Question 16 This question addresses sustainable management of natural environments. The options are: 1. Maintain the interactions between the members of the ecosystem. 2. Stop hunting animals and harvesting the fruits of the plants in the ecosystem. **Analysis:** - The first option suggests a holistic approach that recognizes the importance of interactions within ecosystems. - The second option suggests a more restrictive approach that may not consider the balance of the ecosystem. **Best Answer:** The best way to sustainably manage natural environments is to **"maintain the interactions between the members of the ecosystem."** ### Question 17 This question asks about human activities that have converted nearly 50% of the Earth's land surface. The options are: 1. Land converted in the construction of dams to create lakes and reservoirs. 2. Land converted in the construction of roads and bridges. 3. Land converted in the construction of all homes and buildings. 4. Land converted to the production of crop and animal products. **Analysis:** - The first three options focus on infrastructure development. - The fourth option addresses agricultural practices, which are significant contributors to land conversion. **Best Answer:** The activity that has most significantly contributed to the conversion of land is **"land converted to the production of crop and animal products."** ### Summary of Answers - **Question 15:** How much do we need and where can we get it - **Question 16:** Maintain the interactions between the members of the ecosystem. - **Question 17:** Land converted to the production of crop and animal products.