Question

state wheather the following statements are True or False.
1. Earthquake is a physical and irreversible change.
2. Some physical changes can be irreversible in nature.
3. Most chemical reactions are permanent in nature.
4. The changes that are harmful to us are undesirable changes.
5. Occurrence of day and night are periodic changes.
6. Occurrence of seasons is non-periodic changes​

Answer 1

Answer:

1. True

2. True

3. True

5. True

6. False