73.
Match the following columns
Column I Column II
a. Audio 1. Flash card
b. Visual 2. Radio
c. Audio 3. Drama
d. Audio-visual 4. Tape recorder

74.
Match the following columns
Column I Column II
a. AGMARK 1. 1953
b. ICAR 2. 1973
c. NES 3. 1937
d. T and V system 4. 1929

78.
Which of the following is the special scheme launched by the ICAR for transfer of technology to the farmers?

80.
When an extension worker approaches large number of people, spread over large areas for disseminating new improved production technology, it is called

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