8. What chemical was used to simulate the effect of acid rain on a hay infusion

Question

8. What chemical was used to simulate the effect of acid rain on a hay infusion culture 9. What does an unfavorable pH adversely affect that inhibits seed germination? on the effect of acid rain on seed germination, if 18 of 10. In the Experimental Procedure the sunflower seeds germinated in the 1% vinegar 11. What kind of animal is Gammarus? 12. What will Daphnía do that might prevent cultural eutrophication from occurring? 13. Are there more or fewer algal cells present in a water sample as the absorption of light decreases? 14. What element from the Silver Lake condominiums' sewage output contributes to the increased algal population? Thought Questions 1S. A "dead zone" forms where the Mississ ippi River empties into the Gulf of Mexico due to nutrient runoff into the river that is carried to the Gulf. Explain how the dead zone forms and what impact it may have on humans. 16. Pollutants often affecet the producers in an ecosystem first and then have far-ranging effects. Use acid rain and a food chain to illustrate your understanding of the impact pollutants have after they enter an ecosystem Describe how the cultural eutrophication case study illustrates the need to have a balance of population sizes in an ecosystem. 17. 25 4 Laboratory 25 Effects of Pollution on Ecosystems

Explanation / Answer

8. Sulphuric acid and nitric acid could be used to simulate the affect of acid rain.

9. Unfavourable ph affect the growth of seed .

11. Gammarus is a crustaceans.

12. Daphnia inhibit the growth of cyanobacteria by eating them. Hence, in this way eutrophication prevent cultural eutrophication.

13.There will be less algal growth as light intensity decreases.

14. Phosphorus and nitrogen element increased algal population.

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