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DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata

Subject :NSO Class : Class 7

Read the given statements and select the correct option.
(i) In insects, circulating body fluids serve to distribute oxygen to tissues.
(ii) Yeasts respire aerobically, therefore, they are used to make wine and beer.
(iii) Bronchitis is the inflammation of bronchi which may be caused on exposure to air pollutants.
(iv) In a healthy person, maximum capacity of lungs for inhaled air is 1500 mL.
(v) Sneezing expels the foreign particles from the inhaled air.

A Statements (i), (ii) and (iv) are incorrect, while statements (iii) and (v) are correct.
B Statements (i), (ii) and (iii) are incorrect, while statements (iv) and (v) are correct.
C Statement (ii) is incorrect, while statements (i), (iii), (iv) and (v) are correct.
D Statements (ii) and (v) are incorrect, while statements (i), (iii) and (iv) are correct.

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Ans 1:

Antareep Mukherjee from New Horizon Public School, Bangalore

Class : Class 8

(i) is correct please fix

Ans 2:

Antareep Mukherjee from New Horizon Public School, Bangalore

Class : Class 8

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DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata

Subject :NSO Class : Class 7

Read the following statements and select the correct option.
Statement 1 : Yeast is single-celled organisms which is used in baking and brewing industry.
Statement 2 : Yeast carry out anaerobic respiration, i.e., fermentation and release, ethyl alcohol and carbon dioxide.

A Both statements 1 and 2 are true and
statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.

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Ans 1:

Ashvik Banerjee from Mount Litera Zee School , Vasco

Class : Class 9

Actually, both statements are not related. So I think the answer should be option b)

Ans 2:

Priyansh from Dikshant International school haldwani, haldwani

Class : Class 7

Ans 3:

Midhuna from ABCD, Banglore

Class : Class 3

Ans 4:

Arghya Kashyap from Modern Delhi Public School, Faridabad

Class : Class 8

It should be B

Ans 5:

Vihaan Tandon from Dps agra, Agra

Class : Class 7

it should be (b)

Ans 6:

Midhuna from ABCD, Banglore

Class : Class 3

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DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata

Subject :NSO Class : Class 7

Read the given passage and select the correct option for (i) - (iii).

(i) are present in the chest cavity. This cavity is surrounded by (ii) on the sides which form a cage like structure. A large muscular sheet called (iii) forms the floor of the chest cavity.

A (i)-Lungs; (ii)-Ribs; (iii)-Diaphragm
B (i)-Diaphragm; (ii)-Ribs; (iii)-Lungs
C (i)-Bronchi; (ii)-Ribs; (iii)-Lungs
D (i)-Trachea; (ii)-Bronchi; (iii)-Lungs

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DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata

Subject :NSO Class : Class 7

Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.

(i) In cockroaches, air enters the body through spiracles.
(ii) During heavy exercise, we get cramps in the legs due to accumulation of carbon dioxide.
(iii) Normal range of breathing rate per minute in an average adult person at rest is 12-18.
(iv) During exhalation, the ribs move upwards.

	(i)	(ii)	(iii)	(iv)
A	F	T	F	T
B	T	T	F	T
C	T	F	T	F
D	T	T	T	F

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Ans 1:

Sarah Ahmad from st. mary's school, delhi

Class : Class 8

uh ya it should be B the last statement is true not false

Ans 2:

Meghna Sesha from Deens Academy, Bangalore

Class : Class 7

Ans 3:

Ayan Vohra from Bhavan Vidyalaya , Chandigarh, chandigarh

Class : Class 8

it is B!!! SOF, I know you never listen but like come on at least fix your solutions, so they are actually correct.

Ans 4:

Atharv Deshmukh from Lexicon International School, Pune

Class : Class 7

AM I A MUTANT ? BECAUSE MY RIBS MOVE UPWADS WHEN I INHALE ......RIGHT SOF?

Ans 5:

Adwitiya Roy from South Point High School, KOLKATA

Class : Class 8

Ans 6:

Pari Shiddam from PIS Powai, MUMBAI

Class : Class 8

it should be B . The solution is also wrong

Ans 7:

arnav raj sharma from gulibulium school, new york

Class : Class 8

THE SOLUTION DOESN'T MAKE SENSE

Ans 8:

Ayman Nadeem Khan from Indian School Al Ghubra, Muscat

Class : Class 8

IT SHOULD BE B!!!

Ans 9:

Arav Vilas Musale from Narayana e-techno school, Nanded

Class : Class 7

This is a NON SENSE!!!!!!!!

Ans 10:

Antareep Mukherjee from New Horizon Public School, Bangalore

Class : Class 8

Ans 11:

aarav shankar from st xaviers high school, gurugram

Class : Class 7

Ans 12:

Saanjana from Vibgyor , Mumbai

Class : Class 8

Ans 13:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore

Class : Class 8

it is BEEEEEEEEEEE!!!!!!!

Ans 14:

Yashraj Namdev Deshmukh from Sahyadri English School, Loha, Nanded

Class : Class 7

Its BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 15:

Preethi from KKIS, Singapore

Class : Class 7

It should be B

Ans 16:

Arghya Kashyap from Modern Delhi Public School, Faridabad

Class : Class 8

It should be B

Ans 17:

Anvi from DPS, Noida

Class : Class 8

should be b

Ans 18:

Viraaj Jassal from LEARNING PATHS SCHOOL, MOHALI

Class : Class 7

Should be B as ribs move upwards and outward while inhaling and downwards and inwards while exhaling.

Ans 19:

Arav Vilas Musale from Narayana e-techno school, Nanded

Class : Class 7

It should be option B , The SOF team is sleeping or what

Ans 20:

Saanjana from Vibgyor , Mumbai

Class : Class 8

It is 15-18, not 12-18.

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Subrata nayek from CBSC, ARAMBAGH

Subject :NSO Class : Class 6

Read the given statements and select the correct option.
Statement 1 - We should use jute bags instead of plastic bags for carrying goods.
Statement 2 - Jute bags are cheaper than plastic bags.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true and statement 2 is false.
DBoth statements 1 and 2 are false.

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Ans 1:

Vivaan Kohli from Greenwood High International School, Bangalore

Class : Class 7

Answer should be option A as Statement 1 is correct. Statement 2 is also correct as jute bags are cheaper than plastic bags. Statement 2 is the correct explanation of Statement 1.

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Souradeep Saha from DON BOSCO SCHOOL PARK CIRCUS, Kolkata

Subject :NSO Class : Class 7

The given picture shows a camel with its different parts labelled as P, Q, R, S, T and U.

Which of the following statements is incorrect regarding its adaptations?
(i) Q is slit-like and has flap to prevent the entry of sand.
(ii) R is leathery for chewing thorny plants.
(iii) T is used for storing water.
(iv) S is sticky and webbed to prevent it from sinking into sand.

A(i) and (iii) only
B(ii) and (iv) only
C(iii) and (iv) only
D(ii) and (iii) only

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Spandan Trivedi from D.A.V. International School, Ahmedabad

Subject :NSO Class : Class 8

In the experiment, if A is plated with copper, the anode would be

A A
B B
C C
D Data insufficient

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Ans 1:

Soumik from Dps bhilai, Bhilai

Class : Class 6

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

Refer to the given flow chart.

Identify W, X, Y and Z and select the correct statement regarding them.

ARed Fort is made of W.
BX typically breaks into flat thin layers and is used in making cement.
CY is porous and light weight rock.
DZ is formed from a type of sedimentary rock and found in different colours.

I think it is C.ð¶ðµð¼ðº YOYOYO

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Ans 1:

shaun joel dasari from subs, chennai

Class : Class 4

yes it is

Ans 2:

aaa from Euro International School , pune

Class : Class 5

Even in the question Z is marked as metamorphic

Ans 3:

Aadi from Delhi Public School , golaghat

Class : Class 8

Ans 4:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon

Class : Class 7

Z is Metamorphic :(

Ans 5:

aaa from Euro International School , pune

Class : Class 5

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

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Ans 1:

Ananya Ojha from Delhi Public School, Noida

Class : Class 5

Bc this is Olympiad here it happens like this only

Ans 2:

Bubui from ABCD, Bangalore

Class : Class 5

Ans 3:

Inez from Vibgyor High Airoli, bangalore

Class : Class 5

Why have they put SST question in a science paper?

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Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Subject :NSO Class : Class 5

In the given figures, X, Y and Z represent three different states of matter.

Select the correct option regarding X, Y and Z.

AX is a liquid while Z is a gas.
BY is a solid while X is a liquid.
CX and Y are solids while Z is a gas.
DY is a gas while Z is a solid.

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Ans 1:

Aharshi Kauri from Bishnupur High School, Bishnupur Bankura

Class : Class 7

D

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