Question

please help me i will mark you brainly ​

Answer 1

1) those materials which cannot be easily compressed , cut, bent or scratched are called heard material. those materials which cannot be easily compressed, cut, bent or scratched are called soft materials

2) sorry I don't know the answer for this question

3) a material having the property or admitting light diffusely. examples : vegetable oil and sunglasses.

4) bursting of balloon

making ice from water