Question

Rafi said that "Flour from Rice / Wheat is a man-made change." He wants to make a list of examples of this kind of change, help him expand his list.

Answer 1

Answer:

Yes flour from rice or wheat is a man made changes because rice is a natural resource and man change it to a flour

Answer 2

When humans make changes to the natural state of a thing than the difference is called a man-made change. The natural things are called as primary products and when changes are made to them they become secondary products. Lists of man-made changes are:

1.      Sugar from sugarcane

2.      Cloth from cotton

3.      Paper from wood/sugarcane

4.      Jam and pickles from fruits and vegetables

5.      Coffee from coffee beans

6.      Alloys from ores