Question

evdpuldLIUN Uepenus !
23. How would you show that a candle needs air to burn
24. Differentiate between 'ray' and 'beam' of light.
25. Name the acid and base used in protetest?
mouth Ortona​

Answer 1

Answer:

take a candle and a glass

first burning the candle

then in candle upper put a glass then see that some sec. the candle is burning then automatically closed burning therefore as well as know that candel needs air to burn

Answer 2

Answer:

23: to show that the candle needs air to burn follow these steps

1. take a candle and place it on the table

2. cover the candle with the glass

3. the flame goes out

this is because inside the glass there is no air present