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Naman Garg from Deens Academy,Gunjur, Bangalore
Subject :NSO    Class : Class 3

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Shivapriyaa from Delhi Public School, Chennai
Subject :NSO    Class : Class 8

A man fires a gun 150 m from a cliff. A second man who is standing 300 m further away from the cliff hears the gun 1 second after he sees the flash. The second man will hear the echo from the cliff



A 1 second after seeing the flash
B 2 seconds after hearing the gun
C 2 seconds after seeing the flash
D 4 seconds after hearing the gun.


The right answer is 3 seconds after seeing the flash but that is not even there in the option. Please check

Ans 1:

SOHAM GHOSH from BMS, BURDWAN
Class : Class 9
Option C

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Paramveer from Rao Phalad Singh public school NARNAUL, Behror
Subject :NSO    Class : Class 7

Ans 1:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
The most abundant element in the earth's crust is oxygen, making up 46.6% of the earth's mass. Silicon is the second most abundant element (27.7%), followed by aluminum (8.1%), iron (5.0%), calcium (3.6%), sodium (2.8%), potassium (2.6%). and magnesium (2.1%).

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nidhi from S M shetty HIgh school, MUMBAI
Subject :NSO    Class : Class 5

Ans 1:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur
Class : Class 5
A.Proteins

Ans 2:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
Yes protiens plays a cruical role in our diet

Ans 3:

Piyush Kumar Pruseth from Sri Aurobindo Integral Education and Research Centre, Rajgangpur
Class : Class 5
A.Proteins

Ans 4:

D Murari from Indian School of Excellence, Bangalore
Class : Class 5

Ans 5:

Manasvi Nagpal from blooming dales international school, sri ganganagar
Class : Class 5
ANS IS A NO ERRORYOU MEAN ANYTHING IS WRONG SOMETHINGS ARE RIGHTOK

Ans 6:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
you stupid

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S Dharun from Chennai Public School, Chennai
Subject :NSO    Class : Class 8

Read the given statements and select the correct option.
Statement 1 : When Ravi saw a film on space wars, he didn’t hear any explosions.
Statement 2 : Sound travels slowest through gases.

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 Statement 1 is false but statement 2 is true.


i cant understand the meaning of statement 1

Ans 1:

S Dharun from Chennai Public School, Chennai
Class : Class 9
it is b

Ans 2:

Dev Rawat from R D Rajpal School, New Delhi
Class : Class 8

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Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Subject :NSO    Class : Class 3

Ans 1:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 4

Ans 2:

Mitul Tiwari from Lotus Valley International School, Noida
Class : Class 4
Answer is A because rat eats eggs of other animals and plants. Rest are herbivores.

Ans 3:

Snow White from Le Setea , Paris
Class : Class 4
Yes , the answer is A because bear and rat both are omnivores and rest are herbivores .

Ans 4:

PONMANIKANDAN PONRAJ from FAIPS, KUWAIT
Class : Class 3
The answer is A

Ans 5:

PONMANIKANDAN PONRAJ from FAIPS, KUWAIT
Class : Class 3
The answer is A

Ans 6:

PONMANIKANDAN PONRAJ from FAIPS, KUWAIT
Class : Class 3
The answer is A

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Akshat Iyer from Sri Kumaran Children's Home, Bengaluru
Subject :NSO    Class : Class 6
hi

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Viraj Upadhyay from The Khaitan School, Noida
Subject :NSO    Class : Class 6

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Viraj Upadhyay from The Khaitan School, Noida
Subject :NSO    Class : Class 6

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Mani Gupta from Carmel Convent School, Faridabad
Subject :NSO    Class : Class 8

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