Question

please ans the question​

Answer 1

Answer:

1 .cement and iron

2 .camel cart

3 .vallam

4 .pulley

Explanation:

Q3 ..Some of the main materials found on a bridge are steel, concrete, stone and asphalt. Other materials include iron, timber, aluminum, rubber and other joint materials.

Answer 2

Answer:

,Q no -2 a) ans - iron and cement b)ans- camel cart c)- vallam d)pulley // Q no-3 ans-wood,concerte,iron, stone and cement