Question
In order to study and prove a particular physiological process in plants, the following experiment was set up. Study the same and then answer the question that follow:

What change would you expect to observe in bottle $'D\ '$?

Answer

The bottle $'D\ '$ having limewater will show that $CO _2$ is produced due to respiration taking place in bottle $'C\ '$ having germinating seeds in it. Due to the $CO _2$ produced in bottle C, the limewater turns milky, which passes through bottle $'D\ '.$

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