Question

4) This process occurs in rocks which have iron present in them. Hence a reddish coloured layer formed which

called as rust​

Answer 1

Answer:

Earth's most important iron ore deposits are found in sedimentary rocks. They formed from chemical reactions that combined iron and oxygen in marine and fresh waters. The two most important minerals in these deposits are iron oxides: hematite (Fe2O3) and magnetite (Fe3O4).

Answer 2

Answer:

Yes in case of iron when it rust the reddish brown colour appears to be seem .