Natural Resources - material from Earth that people use, Renewable Resources  - natural resources that can be replaced as it is used, Nonrenewable Resources - natural resources that can NOT be replaced as it is used, Biodegradable - able to be broken down or decomposed, Non-biodegradable - NOT able to be broken down or decomposed, Fossil Fuels - – fuels that formed in Earth over millions of years; for example, coal, oil, \, Pollution - damage done to the environment by the introduction of pollutants, Recycle - to treat or change waste so it can be used again, Conservation - saving and wise use of natural resources, Human Interaction - – interactions between the human social system and the ecosystem, Ecosystem - all the interacting living and nonliving things in an area,

Human Imapct

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