National Science Olympiad Forum By SOF Olympiad Trainer - Page 220
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Sarthak Mittal from G.P. International School, Bharatpur
Subject :NSO    Class : Class 9

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Prasanna Hegde from Vibgyor High Horomavu, BENGALURU
Subject :NSO    Class : Class 3

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Ayush Aryan from Modern public school , North West Delhi
Subject :NSO    Class : Class 8

Ans 1:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
should be option d

Ans 2:

Ahdiya Sharik from St Thomas public school, Trivandrum
Class : Class 8

Ans 3:

sankalp from Gyan Bharti School, Saket, Delhi
Class : Class 10
As per the activity mentioned in NCERT and my own research, the most appropriate answer should be A, because fertilizers boost plant growth and are nutrient specific, meaning they replenish the nutrients.

Ans 4:

Nimish shah from Chrysalis high , Banglore
Class : Class 8

Ans 5:

sankalp from Gyan Bharti School, Saket, Delhi
Class : Class 10

Ans 6:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
Should it be d??

Ans 7:

Rushil from Delhi Public School, Nashik
Class : Class 10
The answer should be (A) because Urea is an acid and contains high amounts of Hydrogen and Nitrogen. It is also considered as a fertilizer because fertilizer is an acid just like urea and also fertilizer contains high amounts of hydrogen and nitrogen. Fertilizer also allows the maximum plant-growth. So, it should be (A).

Ans 8:

Sumedha Mishra from xyz, School, Pune
Class : Class 8

Ans 9:

sankalp from Gyan Bharti School, Saket, Delhi
Class : Class 10
Fertilizer can be both acidic or basic. Some fertilizers have Urea, Ammonium Nitrate as constituents due to which they are acidic. However salts of Potassium such as Potassium Nitrate and Phosphate are also used that are strong bases.

Ans 10:

Soham from Vibgyor high, Pune
Class : Class 8
It should be D as both manure and fertiliser have nutrients

Ans 11:

Nimish shah from Chrysalis high , Banglore
Class : Class 8
a

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noah farias from beacon high, Mumbai
Subject :NSO    Class : Class 2

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Ishan Das from Kendriya Vidayala Mankhurd, MUMBAI
Subject :NSO    Class : Class 6

Ans 1:

Nitim from TMIS, Bharatpur
Class : Class 6

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Nishit Vaity from Euro School Airoli, Navi Mumbai
Subject :NSO    Class : Class 5

Ans 1:

vedant from TSRS Aravalli, Gurgaon
Class : Class 5
13

Ans 2:

Supratim Biswas from DPS RUBY PARK KOLKATA, kolkata
Class : Class 5

Ans 3:

abhik kumar panda from timpany s s school, Vishakapatnam
Class : Class 5
13

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Ayush Aryan from Modern public school , North West Delhi
Subject :NSO    Class : Class 8

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Anagh Agrawal from Billabong high, JABALPUR
Subject :NSO    Class : Class 3

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mahati from Delhi public school, Hyderabad
Subject :NSO    Class : Class 2

Ans 1:

mahati from Delhi public school, Hyderabad
Class : Class 7

Ans 2:

mahati from Delhi public school, Hyderabad
Class : Class 7
Ans= Pond

Ans 3:

mahati from Delhi public school, Hyderabad
Class : Class 7
aya

Ans 4:

mahati from Delhi public school, Hyderabad
Class : Class 7

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Aathrei MS Damodaran from Chrysalis High, Bengaluru
Subject :NSO    Class : Class 3

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