List of top Physical Sciences Questions

Identify the Manganese containing minerals
(A). Pyrolusite
(B). Malachite
(C). Manganite
(D). Goethite
Choose the correct answer from the options given below:

Which of the following method likely to be used where the water supply is limited and the market value of the crop is high?

Given below are two statements, one is labeled as Assertion (A), and the other one is labeled as Reason (R).
Assertion (A): The molality of a solution in a liquid state changes with temperature.
Reason (R): The volume of a solution changes with a change in temperature.
In light of the above statements, choose the most appropriate answer from the options given below.

Match List-I with List-II

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Match List-I with List-II

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The pH of acid sulfate soils.

Match List-I with List-II

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Which of the nutrient element is luxury consumption?

Given below are two statements:
Statement (I): Humus is the amorphous material derived from the decomposition of organic matter.
Statement (II): Allophane is a crystallite mineral developed from volcanoes
In light of the above statements, choose the most appropriate answer from the options given below.

Water use efficiency in decreasing order
(A). Pitcher Irrigation
(B). Drip Irrigation
(C). Sprinkler Irrigation
(D). Surface Irrigation
Choose the correct answer from the options given below:

Which of the following is not insecticide synergist ?

The following is the list of pesticides
(A) B.H.C.
(B) D.D.T
(C) NaCN
(D) Heptachlor
(E) Carbendazim
Choose the correct answer from the options given below :

Given below are Four statements :
Statement (I) : Bromadiolone is used as a rodenticide.
Statement (II) : Atrazine is a herbicide.
Statement (III) : Carbamate group of pesticides was related to the Bhopal gas incident.
Statement (IV) : Rotenone a, natural compound is used as an insecticide and herbicide.
In light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements :
Statement (I) : Black gram as a cover crop reduces surface runoff and soil loss during rainy seasons.
Statement (II) : Black gram as a live mulch crop reduces surface runoff and soil loss during rainy seasons.
In light of the above statements, choose the most appropriate answer from the options given below.

Which of the following group of compounds is produced by Streptomyces hygroscopicus ?

Match List-I with List-II
{|p{7cm}|p{7cm}|} List-I (Mineral Element) & List-II (Function)
(A) Molybdenum & (I) Water Oxidation
(B) Manganese & (II) Chlorophyll Structure
(C) Magnesium & (III) Nitrogen fixation
(D) Zinc & (IV) Auxin Synthesis

Match List-I with List-II
{|p{7cm}|p{7cm}|} List-I (Column A) & List-II (Colums B)
(A) DNA is found at the end of the linear eukaryotic chromosome & (I) Centromere
(B) Protein structure on eukaryotic chromosomes where spindle fiber attaches & (II) Telomere
(C) DNA site where kinetochores are found & (III) Nucleolar organizer
(D) DNA sequence that serves as the template for synthesis and amplification & (IV) Kinetochore

Choose the correct answer from the options given below :
(A) Enzymes enhance reaction rate by a factor of 2 to 10.
(B) Activation energy of a reaction is lowered by enzymes.
(C) Interactions between enzymes and substrates are hydrogen, ionic and hydrophobic bonds.
(D) Substrate concentration does not affect the rate of enzyme-catalyzed reactions.

Match List-I with List-II
{|p{7cm}|p{7cm}|} List-I (Discover) & List-II (Scientist)
(A) Nutrient essentiality criteria & (I) Y.L. Nene
(B) Stages of cell & (II) Arnon and Stout
(C) Cell & (III) Robert Hooke
(D) Khaira disease & (IV) Walther Fleming

In plants, the photoassimilates are translocated as

Riparian Erosion occurs at

The Environment Protection Act was enacted in India in the year

Under which law the industries likely to cause environmental pollution should be examined by

The process of self purification process of polluted waters can be noted by the

Which of the following is an imino acid