8th grade chapter 5

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Across
  1. 2. This contains all of Earth's waters.
  2. 5. This resource is a natural resource that can be replaced in nature at about the same rate it is used.
  3. 6. This is any energy source, organism, or substance found in nature that people use.
  4. 7. The type of coal that forms depends on heat & __?
Down
  1. 1. This is a nonrenewable energy source formed from ancient plants
  2. 3. This resource is a natural that exists in a fixed amount or that issued up faster than it can be replaced in nature.
  3. 4. Coal produces ___ that pollute air & water.