Xeriscaping can save water by eliminating landscape plantings, replacing plants with rocks, sand and sculpture creating wetlands instead of landscaping planting native or drought-resistant plants with little or no water requirements planting invasive exotic plant species collecting rain water and storing it in cisterns or tanks

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.