Question

In Which Of The Following Sentences Are Incorrect?
1.Photosynthesis is a chemical change.
2.Digestion of food is a chemical change.
3.Formation of manure from leaves is a chemical change.
4.Iron and rust are the same substances

Answer 1

Answer:

4. iron and rust are the same substances is a incorrect sentence

Explanation:

$hope \: it \: helps \: u$

Answer 2

Answer:

4.Iron and rust are the same substances

Explanation:

iron rust are not the same substances