Question

Answer the following
1. Why solids have definite shape ?
2. Write definition and Sl unit of length ?
3. Write two causes of noise pollution ?
4. Why does ice float on water ?
5. What is hibernation?

please fast answer​

Answer 1

Answer:

Solids have a fixed shape and a fixed size. The particles are very close together and held in place by strong forces (bonds). Their particles cannot move around, but they do vibrate. Because the particles cannot move around, a solid has a fixed shape.