Biology, asked by aniketkumar49, 9 months ago

4. Why do iron bridges have rollers?

Answers

Answered by mysterio004

6

Answer:

Because iron expand during summer so if there is no roller the bridge may collapse

Answered by rishikaswanjatt

2

Answer:

because it work during the summer so it have iron bridges have rollers

Previous Question

Next Question

Similar questions

English, 4 months ago

यू आर द कैप्टन ऑफ टैगोर हाउस राइट ए लेटर ऑन सी मीटिंग बाय हाउस इन चैप्टर स्कूल अट ए सर्टेन मीटिंग रीच हम लेट राइट अ लेटर इन अबाउट 50 वर्ड्स टू योर ब्रदर टेलिंग रीजन रिचिंग होम लेट ...

Math, 4 months ago

Ram bought a bicycle for Rs.4000 and sold it for Rs.5600 then which of the following is true loss of Rs.1600 interest of Rs 1600 profit of Rs.1600 Discount of Rs.1600 pls give answer with justification...

Computer Science, 4 months ago

. What command should we use to :- b= 10 a) To describe the data type of b b) To retrieve the address of variable b.

Math, 9 months ago

what are valentry angles sorry for spelling...

Political Science, 9 months ago

why do we need goverment...

Social Sciences, 11 months ago

Who was appointed the new brand ambassador of 'Power', Bata's sport wear brand? A.Mithali Raj B.Smriti Mandhana C.Harmanpreet Kaur D.Soni Yadav...

Social Sciences, 11 months ago

Who has been sworn-in as the new Chief Justice of Kerala? A.K. T. Koshi B.Antony Dominic C.Navniti Prasad Singh D.Arijit Pasayat...

Social Sciences, 11 months ago

Who has been chosen for the 2nd edition of Akbar Kakkattil Award 2018? A.U K Kumaran B.N S Madhvan C.T D Ramakrishnan D.Subhash Chandran...