water, trees, air, plastic, animals

a resource that can be replaced in a human lifetime

there is not enough of something to meet all of the people's needs and wants (oil, gas)

non renewable resources that are not replaced by nature once they are taken from the environment such as oil, natural gas, salt, sulphur, lignite, sand gravel, and limestone

human-made products used to produce goods or services. This includes building and equipment. Rice mills, sugar refineries, oil refineries, cotton gins, and meat packing plants are examples.

a resource that will be used up someday such as coal or oil

water, soil, oil, trees, salt

used to make matches, medicine, and plastics

people who supply the labor to produce goods and provide services. They are paid for their work.

oil, gas, salt, coal

to use resources carefully

materials found in nature (Earth) that people can use (water, soil, trees)