Subject :NSO Class : Class 4
Rubina kept some naphthalene balls in her almirah. After few days, she observed that their size has decreased.
The change that occurred in size of naphthalene balls is similar to the change in state of matter taking place when ___________.
AIce-cream is put on a table
BWater is boiled and vapours are formed
CCurd is made from milk
DA camphor block is heated
I do not understand this question