91.
Grassy stunt virus desease of rice is transmitted by

92.
Concentration of which element is highest in soil

93.
The maximum area under hybrid rice in the world, is found in which country?

94.
Which one is not allowed in Organic Farming in India?

95.
Carthamus tinctorius is a botanical name of

96.
Hygroscopic water is retained in soil at

97.
Which one of the following terms is used to denote the relative land area under sole crop required to produce the same yield as obtained under a mixed or an intercropping system at the same management?

99.
Oxygen evolving complex of PSII (Photosystem II) contains

100.
The total number of isotopes of elemental hydrogen is

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