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Black heart in potatoes is caused by oxygen deficiency during storage, leading to internal tissue necrosis. It is not a pathogen-induced disease but a physiological disorder.
Which of the following box is at the top?
Who among the following lives on the floor numbered six?
Four of the following five are alike in some way and hence form a group. Which of the following is the one that does not belong to the group?
...In which of the following floor does Peter lives in a building?
Who among the following belongs to Delhi?
On which of the following day A celebrated the festival?
On which floor does A live?
How is M related to L?
Who among the following person likes Liberty?
At which place box B is kept in the stack?