National Science Olympiad Forum By SOF Olympiad Trainer

Vasudha from PSBB KK Nagar, Chennai

Subject :NSO Class : Class 6

Read the given passage where few words have been italicised. Iron is a very important food component. It takes part in formation of thyroid hormone secreted by parathyroid glands of our body. It is a trilobed gland located in the neck region. Iron deficiency can lead to malfunctioning of the gland causing hypo or hyper secretion of thyroid hormone. This leads to disease like osteomalacia.Foods like orange and spinach are recommended to the patient suffering from this condition. Select the correct option regarding this.

AIron should be replaced by iodine.
BParathyroid should be replaced by thyroid and osteomalacia should be replaced by anaemia.
CTrilobed should be replaced by tetralobed.
DOrange and spinach should not be replaced as they are correctly mentioned.

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Shaurya from Kothari International School, noida

Subject :NSO Class : Class 7

Anushka bagged four different kinds of flowers on the potted plants as shown below and left them undisturbed. Which of these four flowers is most likely to produce fruits and seeds?

A
B
C
D

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Shaurya from Kothari International School, noida

Subject :NSO Class : Class 7

Refer to the given figure.

Bees that collect nectar from the flower help carry X to other places. Which part of the flower should the bees touch to collect X?

AP
BQ
CR
DS

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Shaurya from Kothari International School, noida

Subject :NSO Class : Class 7

Which of the following characteristics are common to both wind and water pollinated flowers?
(i) Pollen grains are long and ribbon-like.
(ii) Stigma is large and feathery.
(iii) The flowers are not colourful.
(iv) The flowers do not produce nectar.

A (i) and (ii) only
B (iii) and (iv) only
C (ii) and (iii) only
D (i) and (iv) only

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Ans 1:

Midhuna from ABCD, Banglore

Class : Class 3

c too correct right plz explain

Ans 2:

Sarah Ahmad from st. mary's school, delhi

Class : Class 8

yes but i think they meant 'choose the incorrect option' and not 'correct option'

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Arnesh from DPS Mathura Road , New Delhi

Subject :NSO Class : Class 4

Digestion of food begins in our ____________ and ends in our ____________.

AMouth, Rectum
BStomach, Small intestine
CMouth, Small intestine
DStomach, Large intestine

c

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Niriksha Angom from New Horizon Gurukul , Bangalore

Subject :NSO Class : Class 3

Refer to the given picture and answer the following questions.

Savitri is a nomad. To earn bread, she works as a helper in three homes which are on different floors. She lives in a and works in b. Which of the following options correctly identifies a and b in the figure?

A a-3, b-1
B a-2, b-1
C a-3, b-2
D a-2, b-3

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Ans 1:

akshitha from Euroschool, Bengaluru

Class : Class 3

its so hard i can't understand

Ans 2:

AaradhyaPatel from Delhi Public School, Korba

Class : Class 3

Yes this so much hard but I did it

Ans 3:

Shruti from ,

Class : Class 1

me too

Ans 4:

Avighna Shastri from doha modern indian school, doha

Class : Class 2

Ans 5:

akshitha from Euroschool, Bengaluru

Class : Class 3

i got 4/5 guys

Ans 6:

Niriksha Angom from New Horizon Gurukul , Bangalore

Class : Class 5

Ans 7:

akshitha from Euroschool, Bengaluru

Class : Class 3

so hard?

Ans 8:

SHAMBHAVI from MDPS Faridabad, Faridabad

Class : Class 4

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Sarang Shete from Amanora School, Pune

Subject :NSO Class : Class 5

The given figure shows one of the important organ systems of the human body. Which is incorrect about the organ labelled as X ?

1. It produces urine.
2. It excretes urea.
3. It stores urine.

A2 only
B3 only
C1 and 2
D2 and 3

answer is A ,kidneys do not store urine.

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Ans 1:

Shivesh Senthilkumar from vels vidyashram, chennai

Class : Class 6

Ans 2:

Satvik Agrawal from Delhi Public School, bhopal

Class : Class 5

okkokokokokokokokokayyyyyyyyyyyyyyyyyyyyy

Ans 3:

Sarang Shete from Amanora School, Pune

Class : Class 8

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Vartika Agarwal from Phoenix world school, Pune

Subject :NSO Class : Class 7

two positions of a dice are shown. If there are two dots in the bottom, then how many dots will be on the top ?

A2
B3
C5
D6

it could be anything....5 or 6 dots....this question is wrong

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Tapan from San Academy, Chennai

Subject :NSO Class : Class 6

Refer to the given flow chart.

Identify P, Q, R and S and select the correct option.

	P	Q	R	S
A	Oyster	Turtle	Pigeon	Grasshopper
B	Tortoise	Clam	Butterfly	Sparrow
C	Oyster	Tortoise	Mosquito	Housefly
D	Snail	Turtle	Robin	Stork

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D from abc, bangalore

Subject :NSO Class : Class 2

Which of the following services is/are done by the professional shown in the given picture?

A Accepting deposits from the public and keeping them safe.
B Sending and receiving telegrams and money orders.
C Giving loans to the customers and charging interest from them.
D Both (A) and (C)

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Ans 1:

Saunak Banerjee from RBK , Mumbai

Class : Class 5

D

Ans 2:

anu from Haralur, Bengaluru

Class : Class 5

D A and C

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