National Science Olympiad Forum By SOF Olympiad Trainer
  1. Home
  2. /  Forum

User Forum

Ask Your Question
ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Refer to the given paragraph and table and answer the following questions.
Neha took 100 gm each of three types of soil, X, Y and Z, in three separate pots with hole at the bottom. The amount of water that was poured in the soil pot, just before it started dripping from the bottom hole, is tabulated here.

The soil that is mixture of clay, sand, humus and is usually very good for growth of most plants is __________.

A X
B Y
C Z
D Cannot be determined


Ans shd be D (Cannot be determined)

Ans 1:

ABHAY AGARWAL from ,
Class : Class 3

Ans 2:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 6
B IS THE ANSWER ANURADHA NAIR 4C

Post Your Answer

ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Ans 1:

Rehaan Sejwal from Gyan Bharati school, Delhi
Class : Class 7

Ans 2:

ABHAY AGARWAL from ,
Class : Class 3

Ans 3:

Visakha Dhar from GD Goenka, jhajjar
Class : Class 3
the correct answer is CFCs .but is not mention in the option.

Ans 4:

Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Class : Class 4
the ans should be CFC

Ans 5:

somesh from cps katol road, nagpur
Class : Class 4
It is CNG

Ans 6:

BV Karthikeya from Sentia, Hyderabad
Class : Class 6

Ans 7:

Anika from Alphabets, Chennai
Class : Class 5
Chloro-fluro-carbon

Ans 8:

BV Karthikeya from Sentia, Hyderabad
Class : Class 6
I GOT IT CORRECT

Ans 9:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 4
I think the answer should be CFC but it is not in the options only.But I also think that it is CO2.

Ans 10:

Nishchita from Gems Modern Academy , Dubai
Class : Class 5
The answer is B as when we use electricity fuel gets burnt and so it produces carbon dioxide.

Ans 11:

Adit Aggarwal from Vibgyor High, Bengaluru
Class : Class 5
The answer was supposed to be CFC .

Ans 12:

Shaurya Veer from CAMBRIDGE INTERNATIONAL SCHOOL , Palampur
Class : Class 7
The correct answer should be CFC

Ans 13:

Deepika from Vibgyor high, Mumbai
Class : Class 1
It should be CFCS

Ans 14:

Mohammad Shahid from Dayawati Modi International Maple Bear, Modipuram, Meerut 250110, Meerut
Class : Class 4
how the released gas from refrigerator is CO2

Ans 15:

SAURISH from R.N. Podar, Mumbai
Class : Class 6
THE OPTION SHOULD HAVE BEEN CFC OR WE CAN TAKE THE OPTION D [NITROGEN] BUT IT IS SHOWING WRONG

Ans 16:

Tanirika Bansal from DPS Faridabad, Faridabad
Class : Class 4
CFCS should be correct answer but I got it right

Ans 17:

SRISANTH from Edify, Tirupathi
Class : Class 5
Actually it is b ,as a is CNG(compressed natural gas which is a energy source that is not a greenhouse gas

Post Your Answer

Jairaj Singh Basur from Vivek High School, Chandigarh
Subject :NSO    Class : Class 6

Post Your Answer

shashwat pal from mnr school of excellence, navi mumbai
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Post Your Answer

shashwat pal from mnr school of excellence, navi mumbai
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

Post Your Answer

Pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 6

Ans 1:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 6
the answer is d

Ans 2:

SANJEEV VARSHNEY from Lotus valley international school, Noida
Class : Class 5
ans is D

Ans 3:

from , dhule
Class : Class 7
master answwer really

Ans 4:

Rishit Garg from Bhavan s B P Vidya Mandir , Nagpur
Class : Class 3
dddddddanswer is D

Ans 5:

ansh rai from delhi public school, Bhilai
Class : Class 4

Ans 6:

Eva jangra from GD Goinka Public school, Bahadurgarh
Class : Class 6
The answer is D)

Ans 7:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 6
a

Ans 8:

Ritvik Bansal from K R Mangalam World School, Gurgaon
Class : Class 7
answer is clearly a

Post Your Answer

Pradanya from KV IIT, Chennai
Subject :NSO    Class : Class 6

Ans 1:

Raghav from Shalom Hills International school, Gurgaon
Class : Class 6

Ans 2:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 6
I agree with omkar,maitri,abhid etc all who are saying option B because we can read that another bulb 'Z' is connected in "PARALLEL" and not in "SERIES" and as we know , if we connect many bulb with same battery in a parallel circuit , they will give same brightness if the one bulb was connected , but the consumption of battery will also increase.So, according to me , there will be no change in bulb y (NORMAL)ans should be : option "A"

Ans 3:

Agustya vaid from Somerville school vasundhara enclave, Delhi
Class : Class 7
i agree with him too

Ans 4:

Abhishri Dwivedi from gems modern academy , Dubai
Class : Class 6
I think (A) is the answer because the explanation in the solution makes complete sense but technically it could also be (B)

Ans 5:

from Sri Chaitanya Techno School, Bengaluru
Class : Class 9

Ans 6:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 6
b is answer

Ans 7:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 6
*as if the one bulb was connected

Ans 8:

Anudeepti Dutta from Delhi Public School-Bangalore East, Bangalore
Class : Class 6
i think it is b

Ans 9:

Mitra Maiti from Techno India Group Public School, Bolpur Prantik
Class : Class 6
The correct answer is B as the bulb Y is in straight series and there is no change of current passing through it. And the curent gets equally divided among X and Y.

Ans 10:

Mitra Maiti from Techno India Group Public School, Bolpur Prantik
Class : Class 6

Ans 11:

Irresh Vijay from NPSI Singapore, Singapore
Class : Class 6

Ans 12:

Parthvi Mishra from DPS Nacharam, Hyderabad
Class : Class 6

Ans 13:

Abhaid Goel from Indian School , Muladha
Class : Class 9
correct answer should be option B because there is no change in the current passing through lamp Y.

Ans 14:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 6

Ans 15:

khushi Joshi from Svkm , Mumbai
Class : Class 9
I agree with Abhaid Goel.

Ans 16:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 6
a is the correct answereverywhere

Ans 17:

Omkar Deshmukh from phoenix greens international school, Hyderabad
Class : Class 7
It should be B as no change of current is there in Y.

Ans 18:

shreyash from amaatra, bangalore
Class : Class 3
yaa me 2 i think its b\

Post Your Answer

Pranesh kannan from Dr g s k, Kumbakonam
Subject :NSO    Class : Class 7

Ans 1:

Sriyansh from Surabhi , Hosapete
Class : Class 9
The scientific name of WBC is leukocyte. There are 5 types of leukocytes namely: Basophils , Eosinophil, Neutrophil, Lymphocyte. The scientific name of red blood cells is erythrocytes. Maybe there is no scientific name for platelets or it may appear that I don't know it.

Post Your Answer

sidhant kumar from don bosco high school, SIWAN
Subject :NSO    Class : Class 6

Post Your Answer

Shubhankar Dasgupta from Holy Cross Senior Secondary School, Kapa, Raipur, (Chhattisgarh), Raipur, (Chhattisgarh)
Subject :NCO    Class : Class 10

Ans 1:

Abhilash from The ngp school, Coimbatore
Class : Class 10
To imagine beyond our limit

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Post Your Answer