Question

Q3. - Define the following -
1) Spontaneous combustion
2) Malleability
3) Thermosetting plastic
4) Endangered animals
5) Fertilisation​

Answer 1

Answer:

1)It is a type of combustion in which substance catch fire spontaneously or without any apparent cause

2)The property of metals in which they can be hammered into thin sheets

3)The plastics which on heating become softened and can be remoulded again is called thermo plastic

4)Animals which are on the verge of extinction is called endangered animals