National Science Olympiad Forum By SOF Olympiad Trainer - Page 538
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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1:

Dhruvan G from Indian School al Ghubra, Muscat
Class : Class 9
Sowing is planting of seeds in the soil. Whereas broadcasting is a form of sowing the seeds where the seeds are scattered by hand on the field.

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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Tilling is a process of preparation of the agricultural soil by mechanical agitation of the soil by digging, stirring, and overturning.


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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The crops grown between October-March are called Rabi crops. Examples of  rabi crops include wheat, barley, oats (cereals), chickpea/gram (pulses), linseed, mustard(oilseeds) etc


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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

True

Anthrax is an infection caused by bacterium Bacillus anthracis. It affects both humans and cattle.


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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Macrophages  is capable of digesting any microorganism (except virses) that enters the cell.


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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Lysosomes are formed from the Golgi bodies and peroxisomes are derived from the Endoplasmic reticulum.


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Utkarsh Rahul Sonawane from St Joseph convent school , Jalgaon
Subject :NSO    Class : Class 7

Ans 1:

Nussrat from Army Goodwill Public School Rajouri, Rajouri
Class : Class 7

Ans 2:

Nussrat from Army Goodwill Public School Rajouri, Rajouri
Class : Class 7
Did you mean muscularization? The increase in the function and sizeof our muscles is called muscularization.

Ans 3:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
. muscularization (usually uncountable, plural muscularizations) An increase in the size and function of the muscles.

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Mridul Jain from Shishukunj International School Indore, Indore
Subject :NSO    Class : Class 5

Ans 1:

ALICE from Delhi Public School, UDAIPUR
Class : Class 8
Correct answer might be B.

Ans 2:

Krethick Ravichandran from FIITJEE GLOBAL SCHOOL , India
Class : Class 9

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 8
Tough question ... Not for class 5 , I'm sure !!!

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is B.

In the first figure 25 X 15 - 12 X 14 = 207

In the 2nd figure, 16 X 17 - 10 X 12 = 152

Similarly, in the third figure, 25 X 25 - 21 X 18 = 247

Hence, the missing number is 25


Ans 5:

Karthik Reddy Munnangi from Chirec International School, Hyderabad
Class : Class 6
Tough Question. I agree.

Ans 6:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5
Yes very tough... didn't understand until I looked at the forum, the didn't even give solution.

Ans 7:

Sourav Jena from ODM public school , BHUBANESWAR
Class : Class 4

Ans 8:

shaurya singh mandla from vibgyor high, Mumbai
Class : Class 9
Toughest Question ever

Ans 9:

Anusha Agarwal from Convent of jesus and Mary st Anthony junior college , Agra
Class : Class 5

Ans 10:

Ekansh Sharma from VidyaShilp Academy, Bengaluru
Class : Class 6
Thank you adminplz answer for the other questions also

Ans 11:

Rishabh Rathi from Blue Ridge Public School, Pune
Class : Class 5
The answer is B.Because,(upper left corner X upper right corner) - (lower left corner X lower right corner) = Middle Number.

Ans 12:

DIVYAM RAMESH SHARMA from GUNDECHA EDUCATION ACADEMY, Mumbai
Class : Class 3

Ans 13:

Ashwak from Cambridge, Jalandhar
Class : Class 8
B

Ans 14:

Aadi from Treamis World School, Bangalore
Class : Class 8
The correct answer is B As 25 into

Ans 15:

DIVYAM RAMESH SHARMA from GUNDECHA EDUCATION ACADEMY, Mumbai
Class : Class 3
this is a tough question

Ans 16:

Shauryadeep from DPS megacity, Kolkata
Class : Class 5

Ans 17:

komal from A.V.M, Mumbai
Class : Class 1
Very tough for 5 th grade

Ans 18:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

Ans 19:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9
Can't understand which formula to be applied

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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Chemical products derived from petroleum are called petrochemicals. Some of the major petrochemicals are acetylene, benzene, ethane, ethylene, methane, propane, and hydrogen, from which many other chemicals are derived.


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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Full form of : LCD - Liquid Crystal Display, and LED - Light Emitting Diode 


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