Question

when iron is heated it

a) contracts
b) expands
c) dissolves
d) evaporates​

Answer 1

Answer:

b) expands

The iron atoms move more slowly after they are heated. The iron atoms move more quickly after they are heated. The iron atoms were not moving before they were heated, and they are not moving after being heated.

The BadSoorat here ✌

Answer 2

Answer:

I think, when iron is heated it expands,

Explanation:

Hope, it helps you.