List of top Physical Sciences Questions

Match List-I with List-II

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Arrange the liming materials based on their decreasing neutralizing value of CCE(%)
(A).Dolomite
(B).Basic slag
(C). Calcite
(D).Calcium oxide
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Difference between true value and observed value is -----

When the original value of N in urea is 46%, the estimated value is 45.5 %, then the absolute error is -----

The stability sequence of divalent cations in the formation of chelates is:
(A). \( \text{Cu}^{2+} \)
(B). \( \text{Ni}^{2+} \)
(C). \( \text{Co}^{2+} \)
(D). \( \text{Zn}^{2+} \)
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Relationship between plant growth response and addition of growth factor was given by ------

The moisture content at which soil ceases to be plastic, becomes semi-fluid and tends to flow like a liquid:
(A). Plastic limit
(B). Plasticity number
(C). Liquid limit
(D). Shrinkage limit
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Given below are two statements:
Statement (I):The occurrence of two or more patches of colours in soil is called 'mottling'.
Statement (II):The mottled colour is due to residual products of reduction & oxidation of Fe and Mn compounds
In light of the above statements,choose the most appropriate answer from the options given below.

Which of the following is not correctly matched component with its function?
(A). Bulk density - Stickiness and Plasticity
(B). Cohesion -- Attraction of water molecules for each other
(C). Water -- Photosynthesis
(D). Consistency - Stickiness and Plasticity
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Non-ferromanesian group of minerals are ----

Elements which readily form metallic bonds is----------

One l of 1 M H$_2$SO$_4$ contains ----g of H$_2$SO$_4$

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Carbon mineralization is tightly coupled to the release of minerals N, P, and S
Reason (R) : It is driven by microbial requirements for C and nutrients for their maintenance, growth, and the production of extracellular metabolites including enzymes
In light of the above statements, choose the correct answer from the options given below.

-----------------established the essentiality of Vanadium in microorganisms.

Compounds having common ion but different solubility constants can be separated by ------

Number of replaceable hydroxyl groups in one molecule of a base is ------

The most abundant soil microorganism is:

The horizons of the soil profile are given below. Arrange the stages in chronological order.
(A) A1-A2-Bt-C-Bt-C
(B) A1-A2-Bhir-Bir-C
(C) A-B-C
(D) Ap-Bhir-Bir-C
Choose the correct answer from the options given below:

Soil water matric potential for a wide range of soil wetness can be measured by

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Gully erosion occurs when water is channeled across unprotected land and washes away the soil along the drainage lines
Reason (R) : Devoid of vegetation, inappropriate land use, and compaction of the soil caused by grazing cause gully erosion
In light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Tillage cause sub-surface soil compaction
Reason (R) : Splashed soil particles clog soil pores
In light of the above statements, choose the most appropriate answer from the options given below .

The total N contents in livestock manures are given below. Arrange in decreasing order:
(A). Dairy (solid)
(B). Swine (liquid)
(C). Poultry (solid)
(D). Dairy (liquid)
Choose the correct answer from the options given below:

Arrange with the increasing level of energy required for disruption of soil aggregates:
(A). Ultrasonic dispersion
(B). Gently shaking in water
(C). Dry sieving
(D). Oxidation of organic matter
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The following are statements on fertilizer N use efficiency of crops. Which statement or the combinations are true?
(A) Partial factor productivity does not account for soil N-supply
(B) Agronomic efficiency requires data on soil N supply
(C) For soil N supply, the N-balance index is useful
(D) Soil N supply does not vary across soil types
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Match List-I with List-II

Choose the correct answer from the options given below: