Plants having no defined limits of vegetative and reproductive element is called________?

The science of water which deals with the depletion and replenishment of water resources is called________?

Reproduction in the average total cost of producing a products as the firm expands the size of plants (its output) in the long run________?

Product of microorganism that appears to chelate calcium is called________?

Physical condition of soil for plant growth is called________?

The living together of two or more species in a prolonged and intimate ecological relationship is called________?