Ostrich Fern Experiment
PROCCESSING OF FINDINGS The average height of an ostrich fern is between 1 metre and 1.82 metres (Croft)and the heights of all the ostrich ferns were within the same range (shown in figure 1). Results of the height of the ferns after the experiment had been conducted and were then tabulated into the experimental group and controlled group rows. The results also show the height difference each fern underwent from the beginningend of the experiment. Average results were shown for both the controlled and experimental fern groups (shown in figure 2). The average height for the control group before the experiment was 1.05 m and after was 1.04 m. The average height for the experimental group before the experiment was 1.05 m and after was 1.01 m. …show more content…
The tinge of brown that was presented in the findings pair up to Yen Chun Hur’s findings as he stated that he found his plants turned brown in exposure to exhaust fumes. Yen Shun Hur’s experiment can explain as to why this experiment attained the results it did. The stomata of the ostrich ferns must have started to become damaged thus restricting the rate of photosynthesis and thus leading to the ostrich ferns being limited to the air it needed to be healthy. Ferns cannot tolerate exhaust fumes thus this experiment cannot support the findingsof Guadalupe Melgarejo’s study, unlike sunflowers, the planting of ferns in densely polluted areas like Beijing, China, would not be beneficial to humans.The air will be more harmful for the ostrich fern and the fern would die in a short period of time (Melgarejo, 2012). Diesel exhaust fumes were used in the experiment. By the findings of this experiment, it is evident that there are harmful toxins that are found in diesel exhaust fumes and thus pollutes the air making it harmful for the environment (knorrell, 2010)(Union,
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