Cycles

123456789101112
Across
  1. 6. a condition maintained in a way is called What?
  2. 8. are lif is revolved around toxic wastes that gets spread out around the world killing animals.
  3. 10. animals population growth swelled to consume a ton of oxygen until the limit was reached
  4. 11. Metabolic energy transfers, bones and teeth, and other tissues and molecules. it moves in what type of cycle.
  5. 12. The geosphere is regulated by what?
Down
  1. 1. earth, water, oxygen, and fire are called what?
  2. 2. The water cycle
  3. 3. carbon, oxygen, hydrogen, nitrogen, phosphorus, sulfur, calcium, and potassium make up 95% of all living things
  4. 4. almost all of this is 80% of nitrogen.
  5. 5. capable of inhaling and a process called what?
  6. 7. peat, coal, oil, and natural gas is in what underground.
  7. 9. James lovelock and Lynn Margulis proposed a hypothesis called what?