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प्रश्न
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Suggest a suitable control for this experiment.
एका वाक्यात उत्तर
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उत्तर
A control for this experiment will be an empty polythene bag with its mouth tied.
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