Question

State true or false
19. Unwanted or unpleasant sound is termed as music.
20.Sound can travel through vacuum.
21.The loudness of the sound is determined by the amplitude of vibration.
22.All liquids conduct electricity.
23. During earthquake we should take shelter under a table.
24. The iris is the coloured part of the eye.
25.Carbon monoxide is a poisonous gas.​

Answer 1

Explanation:

19. False.

20. True.

21. True.

22. [no all liquid doesn't conduct electricity eg: water is a liquid and it doesn't conduct electricity].

23. True.

24. True.

25. True. [Carbon monoxide (CO) is a poisonous, colorless, odorless and tasteless gas.]