Across
- 3. when corals expel their zooxanthellae due to stress
- 6. nutrient essential for making amino acids and proteins
- 7. ammonia is converted to nitrates and nitrites
- 9. plants and animals give off carbon dioxide in a cellular process
- 12. weight per volume
- 13. water molecules stick to each other allowing the water to creep up thin tubes
- 15. one of the main limiting nutrients in marine primary productivity
- 16. amount of energy needed to change the temperature of water
- 17. process used in the carbon cycle to produce carbohydrates
- 18. process in which seawater becomes more acidic because of the excess carbon dioxide (CO2) it is absorbing from the atmosphere.
Down
- 1. type of bond where the oxygen and hydrogen atoms in a water molecule share electrons
- 2. Water molecules have a slightly negative end and a slightly positive end
- 4. type of bonds between water molecules
- 5. atmospheric nitrogen gas is changed into a form that is useable by plants
- 8. burning of fossil fuels is the leading cause of ocean acidification
- 10. converting nitrates and nitrites back to nitrogen gas
- 11. ice is ______ dense than liquid water
- 14. perform most of the nitrogen fixation
- 16. able to dissolve other substances
- 19. form of carbon used in photosynthesis