Write any four advantages of optical fibre communication.

Name any four advantages of tissue culture.

What is an optical fibre?

List any four advantages of genetically modified crop plants over their wild/domesticated relatives.

What is meant by line communication? Give any four advantages of coaxial cables.

Write any four merits of satellite communication over terrestial means of communication. Also give two drawbacks of satellite communication.

Optical fibre works on

Write any two advantage of common names?