Resources are things we get from the living and nonliving environment to meet the needs and wants of a population. Some resources include basic materials, such as air, water, and soil. The supply of many resources is limited. If used, resources can be extended through recycling and decreased use. Changes in environments Changes in environments can be natural or influenced by humans.
Some environmental changes occur slowly, and others occur rapidly.
Science and technology in local challenges People continue inventing new ways of doing things and solving problems. Science and technology have greatly improved health. These benefits of science and technology are not available to all of the people of the world. There is still much more to be understood about science. Many people choose science as a career.