Evil Silly Puzzle

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Across
  1. 3. A harmful contamination of the environment that occurs due to the release of pollutants into the air, water, or soil
  2. 4. A combustible black sedimentary rock, formed from fossilized plant matter, has long been a significant source of energy for electricity generation?
  3. 6. A chemical reaction which occurs when a substance reacts rapidly with oxygen, producing heat and often light
  4. 7. The release of gases, particles, or other substances into the atmosphere, often as a result of human activities?
  5. 8. An activity that involves the removal of natural resources from the earth
  6. 10. A destructive process which involves the clearing of forests or trees
  7. 11. A medium of exchange and store of value facilitates economic transactions and serves as a measure of wealth?
Down
  1. 1. A category of energy resources which includes coal, oil, and natural gas, formed from the remains of ancient plants and animals?
  2. 2. A valuable natural resource, often refined into gasoline and other petroleum products, is vital for energy production and transportation
  3. 5. An industrial activity that involves extracting valuable minerals & ores from the earth's surface
  4. 7. The surroundings or conditions in which living organisms exist
  5. 9. A controversial method that involves injecting high-pressure fluid into underground rock formations to extract oil or gas