National Science Olympiad Forum By SOF Olympiad Trainer - Page 369
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Adithi Keshava from National Center For Excellence , Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Adithi Keshava from National Center For Excellence , Bangalore
Class : Class 7

Ans 2:

Adithi Keshava from National Center For Excellence , Bangalore
Class : Class 7
in the solution, it says that a, b and c is seen in all the rows and columns. But, c appears twice instead of b...

Ans 3:

Vihaan from Dhirubhai Ambani International School, Mumbai
Class : Class 6
Bruh

Ans 4:

Aditaya from Venkateshwar international school, Dwarka
Class : Class 6

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Veda Dua from Delhi Public School, R. K. Puram, New Delhi
Subject :NSO    Class : Class 6

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Rejoice Chrysolite from Ryan international school, Banglore
Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Deficiency of iron.


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Nishchita from Gems Modern Academy , Dubai
Subject :NSO    Class : Class 4

Ans 1:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
D D D the answer is D Nishchita plz give me likes if you like my poetry

Ans 2:

Divyanshi from The Heritage school, Kolkata
Class : Class 4
wrong - d , correct- c

Ans 3:

Naitik Jindal from DELHI PUBLIC SCHOOL RK PURAM, DELHI
Class : Class 8

Ans 4:

Yashvi Upadhyay from Lotus valley international school Greater Noida west ,Noida Ex, Ghaziabad
Class : Class 5
I think the answer for this question is C

Ans 5:

Yashvi Upadhyay from Lotus valley international school Greater Noida west ,Noida Ex, Ghaziabad
Class : Class 5

Ans 6:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
i did C and it was wrong the answer is D

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Ashutosh Sundresh from Shiv nadar, Faridabad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B


Ans 2:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
Then why the answer given says D?

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SIDDHARTH SOMANI from Vibgyor High, Mumbai
Subject :NSO    Class : Class 3

Ans 1:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
D

Ans 2:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 8
The correct answer is C.

Ans 3:

Kashika Goel from DPS Noida, Noida
Class : Class 7
C

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Mohul Gandhi from Podar International School, Powai, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

shaurya from St Gregorios High school, Mumbai
Class : Class 5
A

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

A

In the given classification chart X could be water as coconut and lotus disperse their seeds through water and Y could be explosion as pea and poppy disperse their seeds through explosion. (i) gets dispersed by wind, so it could be maple or milkweed. (ii) gets dispersed by explosion so it could be cocklebur.


Ans 3:

Saksham Chanani from Sri Sri Academy, Kolkata
Class : Class 9
Check the options given for most correct answer:(i) is dispersed by wind. So it should be very light in weight. Correct answer could be Maple (Option A) or Milkweed (Option B). Both are very light.Next, Coconut and Lotus are dispersed by X. Both of these grow very near to water. So, they will be dispersed by water. That means X is Water. So, Option A and Option C could be the right answer.But Option A is common in both. So, let’s confirm by checking the right option for (ii) and Y.Seeds dispersed by Animals will be Mango and (ii). Cocklebur are the seeds of Xanthium. They are hard and have stiff, pointed thorns/spines. So, these attach to the animals’ hides and taken away. So, (ii) is Cocklebur.Peas and Poppy seeds are dispersed when the fruits split and burst open. So, Y is Explosion.That means Option A is the correct answer

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Ronav Kerkar from Jamnabai Narsee School, Mumbai
Subject :NSO    Class : Class 4

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Amitava Pushilal from International Schooling, Singapore
Subject :NSO    Class : Class 5

Ans 1:

rahul from euroschool, Mumbai
Class : Class 8

Ans 2:

rahul from euroschool, Mumbai
Class : Class 8

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

A lunar eclipse occurs when the Earth comes in between the Sun and the Moon.


Ans 4:

rahul from euroschool, Mumbai
Class : Class 8

Ans 5:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9

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SIDDHARTH SOMANI from Vibgyor High, Mumbai
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

A

P is not a natural fibre. so, it can be any synthetic fibre like nylon or rayon. Q can be any natural fibre that is obtained from plant. So, it can be cotton or jute. R an be any natural fibre that is obtained from animal. So, it can be wool or silk.


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