Why is it important to crack - dry
during pond Preparations.

The drying of the pond bottom is the most practical cheap and effective method of eliminating undesirable species in the pond prior to the culture period. Drying oxidizes harmful chemical substances especially sulphides and facilitates mineralization of organic matter. The pond is dried until the soil cracks or when it is firm enough to hold one's weight without sinking more than 5 cm on walking over the surface.

Hope that answers your question.

answer; i believe is(b)converging

as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.