click below
click below
Normal Size Small Size show me how
Unit 8
Natural Resources
Term | Definition |
---|---|
natural resource | anything from nature that people can use |
renewable resource | a resource that can be replaced within a reasonable amount of time |
nonrenewable resource | a resource that, once used, cannot be replaced in a reasonable amount of time |
geothermal energy | a type of energy produced naturally beneath Earth's surface |
hydroelectric energy | energy produced by using the mechanical energy of falling water |
biofuel | a fuel produced by biological materials, such as wood |
pollution | any waste product or contamination that harms or dirties an ecosystem and harms organisms |
conservation | the process of preserving and protecting an ecosystem or a resource |