Question

देश की खुशिाली ककस पर ननभभर िैं– क. व्यक्क्त ख. ककसानो पर ग. मजदरूों पर घ.इनमे से कोई निी​

Answer 1

Answer:

not clear can you send again a picture of this question

Answer 2

Explanation:

1,2 and 3 is correct answer

They are light in weight and is chemically stable. Easily moulded into different shapes and sizes. Good insulation and low thermal conductivity. Good impact resistance and they do not rust.