Question

4. Naplath alene balls disappear with time with out leaving any solid justfly​

Answer 1

Answer:

Naphthalene undergoes sublimation easily i.e., the change of state of naphthalene from solid to gas without the intervention of the liquid state. Thus, naphthalene balls keep on forming naphthalene vapours which disappear into the air with time without leaving any solid.

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Answer 2

Answer:

Photosynthesis is the process in which plants make their food by the help of sunlight water and oxygen