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Shriram dindore from KVS 9BRD AFS PUNE, PUNE
Subject :NSO    Class : Class 8

Ans 1:

Satvik Mehta from St Andrews school Bowenpally, Secunderabad
Class : Class 3
It should be a

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Matisha Kansal from Sacred Heart High School, Chd, Chandigarh
Subject :NSO    Class : Class 6

Ans 1:

Medha from Delhi Public School, Chd, Chandigarh
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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punyah from kvs happy valley, shillong
Subject :NSO    Class : Class 4

Ans 1:

shreyash rawat from podar international school, pune
Class : Class 4
its [D]

Ans 2:

Swarnava Pal from Vivekananda Mission School, Haldia
Class : Class 4

Ans 3:

Devansh from mmvm, Udaipur
Class : Class 4
its [D]

Ans 4:

from , Bengaluru
Class : Class 5

Ans 5:

Daivik Goel from Delhi public school , Vadodara
Class : Class 4
The correct option is -(D)

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Nilanjana De from Delhi Public School North, Bengaluru
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:

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Class : Class 8

Ans 2:

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Class : Class 8
SLUDGE IS THE SOLID WASTE

Ans 3:

Anshuman D from MVM, Hyderabad
Class : Class 7
Sludge settles while scum floats .you are right

Ans 4:

Chaitanya L K from SKCHEC, bangalore
Class : Class 7
yeah...sludge settles and scum floats.

Ans 5:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 8
Sludge settles down while scum stays up

Ans 6:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 7
chlorine and UV rays are tertiary treatment

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SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Subject :NSO    Class : Class 5

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BHIDE PAVANI SHARDUL from ABHINAV VIDYALAY ENGLISH MEDIUM PRIMARY SCHOOL, Pune
Subject :NSO    Class : Class 5

Ans 1:

from DAV, Amritsar
Class : Class 7

Ans 2:

Niveditha from New Horizon Public School, Bengaluru
Class : Class 6
A

Ans 3:

Sohan Chelekar from Millennium National School, Pune
Class : Class 7
the correct answer is a

Ans 4:

sauradeep from j v m Shyamali , ranchi
Class : Class 5
NO

Ans 5:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
a.y

Ans 6:

from DAV, Amritsar
Class : Class 7
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL

Ans 7:

Neelesh Dutta from Innocent Hearts School, JALANDHAR
Class : Class 6
The correct answer is A because an adult frog breathes through both lungs and skin .

Ans 8:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
a.y

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Ridhi Goyal from DAV Public School, Ludhiana
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:

ARYAN AGRAWAL from NPS KORAMANGALA, BANALORE
Class : Class 8
D

Ans 2:

ARYAN AGRAWAL from NPS KORAMANGALA, BANALORE
Class : Class 8
B

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Faraz Khan from Rassaz International School, Mira Road, Thane
Subject :NSO    Class : Class 6

Ans 1:

Faraz Khan from Rassaz International School, Mira Road, Thane
Class : Class 6
answer should be A as to and fro motion of a swing is not periodic motion

Ans 2:

Matisha Kansal from Sacred Heart High School, Chd, Chandigarh
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

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Atharva Kumar Tiwari from DPS, Faridabad
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Ans 2:

Aahana Agarwal from Greenwood high , bengaluru
Class : Class 4

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Yogita Jha from Sarvodaya Sr. Secondary School, Khanpur, Jhajjar
Subject :NSO    Class : Class 5

Ans 1:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
b.50 minutes

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