Couch - A type of grass

This task is about using clues to make inferences.

couch-grass.png

A rhizome is a long horizontal, underground stem.  

Question 2Change answer

a)  Why would it be difficult to get rid of couch grass?

Question 2Change answer

b)  A gardener dug out the section of the plant shown inside the box. 
     Why might this not get rid of the couch grass from this part of the garden?
 

Question 2Change answer

c)  Why is it an advantage to the plant to have the leaves and roots growing from the same section of rhizome?