Which type of data have elements in common but do not fit into rigid rows and columns in a table?.

Semi-structured data is a type of data that has some consistent and definite characteristics. It does not confine into a rigid structure such as that needed for relational databases that which is why  it will not fit into row and columns in a table .

Explanation:

clouds form

solid ice forms on leaves.

water droplets form on grass.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.