"by the year 2025, it is projected that percent of the world's population will live in water-stressed river basins."

43 percent

Explanation:

3.5 billion people of the world population which is equivalent to 43%

heat the gas and measure the pressure

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.