Question

A. Tick (~the correct option.
1. Which of the following is a reversible change?
a. Burning of wood b. Melting of ice
C. Forest fire D. lighting
2. Which statement is true for chemical changes?
a New substance(s) are formed.
b. They are undesirable.
C. They are periodic.
d. The products are formed showly.
3. Which of the following is not a desirable change?
a. Thunderstorm


d. Lightning

C. Tsunami
d. All of these

4. Which of these is a chemical change?
a. Breaking toys
b. Tearing paper. C.burning paper d. melting ice
5. Which of these is not true for physical changes?
a. There is no change in mass.
b.. These are always irreversible.
c. There is no change in energy.
d. No new product is formed.​

Answer 1

Answer:

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Answer 2

Explanation:

1b 2a 3d 4c 5b hope 8t helpa you