1.

                Pole vaulting is done using bamboo poles. Why are steel poles not used in place of bamboo poles?                                     

A.  Steel poles are more expensive compared to bamboo poles.                          
B.  Steel poles are stronger than bamboo poles.          
C.  Bamboo poles are as hard as steel poles.
D.  Steel poles are inflexible while bamboo poles are flexible.
Answer» E.


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