Question

What are the two components of digestive system?
2. Soil is an inseparable part of our life. Justify.
3. Neutralisation reaction is
(a) physical and reversible change.
(b) physical change that cannot be reversed.
(c) chemical and reversible change. (d) chemical change that cannot be reversed.
4. What is the role of the Ozone layer in our atmosphere?​

Answer 1

Answer:

d

because it could not react