Which of the following seeds would germinate?

To remove seed dormancy, we can treat seed by using this chemical.

Which of the following is not an inhibitory substance governing seed dormancy?

Seed dormancy in tomato seeds is due to

Which process makes the seed coat permeable to water?

Which of the following is not a man-made method to overcome seed dormancy?
$(I)$ Seed coat broken by using knives,sandpapers,etc.
$(II)$ Passage of seed through the digestive tract of animals.
$(III)$ Effect of inhibitory substances can be removed by subjecting the seeds to chilling conditions.
$(IV)$ By application of certain chemicals like gibberellic acid and nitrates.