5. Three 1-L samples of pond water are placed in clean containers Sample 1 has 2 g of a high-nitrogen fertilizer added, sample 2 has 4 g of a high nitrogen fertilizer added, and sample 3 has 20 g of a high nitrogen fertilizer added. Which sample would show the most colouration after 10 days? Why?

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evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.