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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
syu

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
got a little confused here but sorted it out

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
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Ans 2:

Class : Class 5
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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Answer is A (L) after the instruction the sequence is : N P S I L 4 W R 9 U F 7 S Y And then u get the answer

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
The correct option is -(D)

Ans 2:

Class : Class 4

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Subject :NSO    Class : Class 7

Read the following statements regarding waste-water treatment plant with one or two blanks. Select the option that correctly completes any two statements.
(i) ________ process allows settling of sand in the chambers.
(ii) The solid waste called _______settles down and lighter waste called ________ floats on the surface.
(iii) Secondary treatment involves use of_______.
(iv) ________ and ________ are used in tertiary treatment.

A (ii) sluge, scum; (iii) chemicals
B (iii) grit removal; (iv) chlorine, UV rays
C (ii) scum, sludge; (iii) bacteria
D (i) screening; (iv) aerobic, anaerobic bacteria


What is the answer for the fourth statement?

Ans 1:

Class : Class 7
chlorine and UV rays are tertiary treatment

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
A

Ans 2:

Class : Class 6
a.y

Ans 3:

Class : Class 6
the correct answer is a

Ans 4:

Class : Class 6
a.y

Ans 5:

Class : Class 6
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Ans 6:

Class : Class 6

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Subject :NSO    Class : Class 9



Select the incorrect statement regarding this.

APlants require nitrogen mainly in the form of nitrate, which is exported from roots to shoots, reconverted to ammonium and assimilated as amino acid.
BRhizobia, cyanobacteria, nitrifying bacteria, symbiotic fungi, etc are used as biofertilizers.
CRhizobium bacteria produce N2 fixing root nodules in leguminous plants and thus help in replenishing nutrients in crop fields.
DMaterials of biological origin which are commonly used to maintain and improve soil fertility are green manures, biofertilizers and bioinsecticides.


Ans 1:

Class : Class 7
D

Ans 2:

Class : Class 7
B

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
the answer would be C as the hands of the clock shows rotational and periodic motion whereas the table top shows only rotational motion

Ans 2:

Class : Class 6
answer should be A as to and fro motion of a swing is not periodic motion

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