Read the statement and select the appropriate answer.
 
1. While Riya was making roti,

Statement 1: She rolled the dough into roti which is a physical change.

Statement 2: And then she baked the roti which is an chemical change.
 
2. Salt dissolved in water can be separated from its solution because it is a change that can be

Statement 1: Reversed by heating and melting of salt.

Statement 2: Reversed by evaporation.