Across
- 5. - A disposal method that reduces volume through controlled burning.
- 7. - A resource formed from ancient organic matter subjected to heat and pressure over millions of years.
- 9. - A black combustible rock extensively used for power generation.
- 13. - Refuse typically generated by households, businesses, institutions, and public activities in communities.
- 14. - A naturally occurring liquid mixture of hydrocarbons used to produce fuels and many industrial products.
- 15. - A category of resource that forms much more slowly than it is consumed.
- 16. - A naturally occurring inorganic solid with a definite chemical composition and crystalline structure.
- 17. - A soft mineral widely used in cement, plaster, and drywall production.
Down
- 1. - Electricity produced through the movement of flowing water.
- 2. - The process of removing valuable geological materials from the Earth.
- 3. - A hydrocarbon resource composed mainly of methane and commonly used for heating and electricity generation.
- 4. - Refuse originating from sources such as industry, agriculture, or specialized operations.
- 6. - A source of power derived from heat originating beneath Earth's surface.
- 8. - An engineered site designed for the disposal and containment of discarded materials.
- 10. - An unmanaged disposal area where discarded materials are deposited without environmental controls.
- 11. - The principal ore from which aluminum is extracted.
- 12. - The extraction of stone, sand, limestone, or gravel from an open excavation site.