Question

Mark true or false:

I) Eruption of volcano is a periodic change.

II) During the dissolution of Urea heat is absorbed.

III) Rust is a reddish brown soft substance.

IV) Butter is an emulsion of fat and water.

V) Digestion of food is a chemical change.
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Answer 1

Answer:

1) Eruption of volcano is a periodic change = False

2) During the dissolution of urea heat is absorbed = True

3) Rust is a reddish brown soft substance = True

4) Butter is an emulsion of fat and water = True

5) Digestion of food is a chemical change = True

Hope this will help you.

Answer 2

Answer:

1.False

2.True

3.True

4.True

5.True

Explanation: