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301.

S.M.P. buffer is used in determination of:

A.	Lime	B.	Potassium
C.	Nitrogen	D.	Calcium

302.

Saline soils are reclaimed/managed by:

A.	Addition of gypsum	B.	Addition of lime
C.	Leaching the soluble salts	D.	Addition of pyrite

303.

Which one of the following oil cakes, in addition to its manurial value, acts also as a nitrification inhibitor?

A.	Mustard	B.	Groundnut
C.	Neem	D.	Til

304.

Saline-sodic soils have the value of:

A.	EC more than 4 mmhos/cm, ESP more than 15, pH more than 8.5	B.	EC less than 4 mmhos/cm, ESP more than 15, pH
C.	EC less than 4mmhos/cm, ESP more than 15, pH more than 8.5	D.	EC less than 4 mmhos/cm, ESP more than 15 pH more than 8.5

305.

Sand stone and limit stone are the examples of:

A.	Metamorphic rock	B.	Igneous rock
C.	Sedimentary rock	D.	All of these

306.

Sedimentary rocks are formed by:

A.	Solidification of lava	B.	Increase in pressure
C.	Increase in temperature	D.	Cementation of broken parts

307.

Si4 AI4 O10 (OH)8 is a formula of:

A.	Kaolinite	B.	Halloysite
C.	Muscovite	D.	Vermiculite

308.

Si4 O10 (OH)8 n.H2O is a formula of:is a formula of:

A.	Kaolinite	B.	Halloysite
C.	Muscovite	D.	Vermiculite

309.

Silica content of an igneous rock is:

A.	80%	B.	5-10%
C.	40-50%	D.	60-75%

310.

Silica has particle size range between:

A.	1.00 to 0.10 mm	B.	0.02 to 0.002 mm
C.	0.10 to 0.01 mm	D.	0.002 mm