Why do plastics not degrade easily?
(a) They have strong ionic bonds.
(b)They have strong covalent bonds.
(c) They have strong metallic bonds.
(d) They have very high melting points 500°C).
“If a country is to be corruption free and become a nation of beautiful minds, I strongly feel there are three key societal members who can make a difference. They are father, mother and the teacher.”
– A. P. J. Abdul Kalam #upsc