What is underground stem? When does it produce aerial shoots?

What is urban waste? What does it include?

What are sub aerial stems?

Why underground stem is different from roots.

Answer the following questions : What is overloading? When does it occur? What does it cause ? How can overloading be avoided?

What is blood clotting? How and when does it occur?

Rhizome of ginger is like the roots of other plants that grows underground despite this fact ginger is a stem and not a root. Justify.

Answer the given Question : What would happen if underground mineral resources are exhausted?

When does the cyst rupture?

When does urine appear deeply coloured?