19. A farmer has 2 kg mongo seeds. He would like to separate the bad seeds from the good seeds. What do you think is the best way to do if you are a farmer?
A. Use a magnet to separate the good seeds from the bad seeds;
B. Use chromatography to separate and identify the bad seeds and the good seeds; C. Use a filter paper and perform filtration process to separate the good seeds from the bad seeds,
D. Place the seeds in water that will make the bad seeds float and the good ones sink, making it a lot to separate them because bad seeds are usually less dense than good seeds.
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A. Use a magnet to separate the good seeds from the bad seeds;
B. Use chromatography to separate and identify the bad seeds and the good seeds; C. Use a filter paper and perform filtration process to separate the good seeds from the bad seeds,
D. Place the seeds in water that will make the bad seeds float and the good ones sink, making it a lot to separate them because bad seeds are usually less dense than good seeds.
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D.place the seeds in water that will make the bad seeds float and the good ones sink,making it a lot to separate them because bad seeds are usually less dense than good seeds