An example of edible underground stem is
- carrot
- groundnut
- sweet potato
- potato.
Answer
(4) potato.
Solution
As per NCERT, underground stems of potato, ginger, turmeric, zaminkand and Colocasia are modified to store food.
∵ Potato tuber bears nodes and buds (eyes), so it is a stem.
∵ Carrot is a modified tap root, sweet potato is a modified adventitious root, and groundnut is a fruit (seed eaten) formed underground.
∴ Potato is an edible underground stem.
Answer: (4)