Chemistry, asked by satyayadav1256, 2 months ago

2. Naphthalene balls kept between woollen clothes disappear after sometim
3. The occurrence of day and night is an example of periodic change.​

Answers

Answered by meenumaurya29011986
0

Answer:

Naphthalene balls kept in woolen clothes disappear after sometime, the phenomenon is called as sublimation.

Explanation: The sublimation is the process where the naphthalene is converted in to vapour state without being the liquid state.

Yes, occurence of day and night is a periodic change as earth rotates about its axis around the sun which leads to day and night. The angular velocity is constant so day is for 12 hours and night for 12 hours.

Explanation:

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