Question

using the same number of given germinating gram seed two students A and B can read the experiment separately strength is a cotton plug to hold the Vineet tube in the mouth of the flask a student be used Arabic ok after 4 hours what day observed give reason

Answer 1

There will be no rise in level of the water from the tube because mouth of test tube is covered with cotton ball since the carbon dioxide will easily pass into test tube and the experiment will not take place ..