National Science Olympiad Forum By SOF Olympiad Trainer - Page 572

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Subject :NSO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1
Here, the answer is B. Since in a magnetic needle the arrow head is the North Pole, it will point towards the South Pole of the left hand side magnet and the other end of the magnetic needle (i.e; South Pole) will point towards the North Pole of the right hand side magnet.This is because like poles repel and unlike poles attract each other. Hence,the polarity of the end P of the right hand side magnet is North.

Ans 2: (Master Answer)

Class : Class 1
Here, the answer is B. Since in a magnetic needle the arrow head is the North Pole, it will point towards the South Pole of the left hand side magnet and the other end of the magnetic needle (i.e; South Pole) will point towards the North Pole of the right hand side magnet.This is because like poles repel and unlike poles attract each other. Hence,the polarity of the end P of the right hand side magnet is North.

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Subject :NSO    Class : Class 7

Read the given passage carefully and answer the question

The phenomenon in which a bird or other animal moves from one place to another in one season, and returns again in a different season is called migration. It is an adaptation to escape the harsh conditions of their normal habitat so as to survive.

The __(i)__ flies from its native place in Russia to places like __(ii)__ in Rajasthan and __(iii)__ in Haryana during a particular season.

It stays in India for a few months and then goes back in __(iv)__ season. The general name given to birds like these is __(v)__ birds. Select the correct sequence of words to fill up the blanks in the above passage.

Which of the following is the probable method these migratory birds use to travel to the same place year after year?

(i) (ii) (iii) (iv) (v)
A Toucan Sultanpur Bharatpur Autumn Adaptatory
B Siberian
crane
Bharatpur Sultanpur Winter Migratory
C Arctic
tern
Bharatpur Sultanpur Spring Migratory
D Siberian
crane
Sultanpur Bharatpur Summer Adaptatory


Ans 1: (Master Answer)

Class : Class 1
Kindly mention your query

Ans 2:

Class : Class 7
The answer is C!!!

Ans 3:

Class : Class 7
The answer is C!!!

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
B

Ans 2:

Class : Class 5
The answer is D A-It is false B- Typhoid and cholera are caused by polluted water, but diabetes isnt. C- It is true that organic and inorganic pollutants cause dissolved oxygen level to decrease D- Agricultural runoffs can contaminate both groundwater and surface water

Ans 3:

Class : Class 7
B

Ans 4:

Class : Class 5
it is saying select the correct option for me

Ans 5:

Class : Class 9

Ans 6:

Class : Class 10

Ans 7:

Class : Class 8

Ans 8:

Class : Class 4
not B for sure as diabetes is not caused due to water pollution

Ans 9:

Class : Class 5
ans b

Ans 10:

Class : Class 8
ANSWER IS B

Ans 11:

Class : Class 7
B is the answer to this question

Ans 12:

Class : Class 5

Ans 13:

Class : Class 9

Ans 14:

Class : Class 8

Ans 15:

Class : Class 4
it should be D

Ans 16:

Class : Class 2
confussing

Ans 17:

Class : Class 7
Tricky , hard and somewhat funny .

Ans 18:

Class : Class 8
The question says choose the 'Incorrect' option

Ans 19:

Class : Class 6
I KNEW ABOUT TYPHOID AND CHOLERA BUT I didn't Knew about diabetes

Ans 20:

Class : Class 7
B is the answer to this question

Ans 21:

Class : Class 8

Ans 22:

Class : Class 5
best

Ans 23:

Class : Class 9

Ans 24:

Class : Class 6
the answer is B

Ans 25:

Class : Class 9
How is it B, we are just learning in school abt germs and diseases and it doesn’t say anything abt diabetes caused by polluted, this is answer is wrong

Ans 26:

Class : Class 8

Ans 27:

Class : Class 5
how is diabetes caused through dirty or polluted water?

Ans 28:

Class : Class 6
It is B as the question is "Select the INCORRECT option"Diabetes is not cased by water pollution so the answer is B

Ans 29:

Class : Class 6
b

Ans 30:

Class : Class 4
B

Ans 31:

Class : Class 9
B

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
Admin ka bacha it is a

Ans 2:

Class : Class 4
there are 3 things needed in life air water and food without air we die in minutes without water we die in hours without food we die in days in the picture it is given as water is given to grasshopper and in question it is given as the grasshopper is in sealed and died after some time only so no food and air is given but as i told after some time grasshopper will die due to lack of air only ans sof you can check your mtg workbook also .

Ans 3:

Class : Class 5
no lack of food and air we die

Ans 4:

Class : Class 4
Without air(oxygen) the grasshopper will die even food or water is given,so answer is A.

Ans 5:

Class : Class 4
If it is food then grasshopper will die after 2,3 days but it is writen after some times so it is a

Ans 6:

Class : Class 4
many questions are wrong sof some children will think that is only correct and get less marks due to your fault .

Ans 7:

Class : Class 4
The correct answer is A.

Ans 8:

Class : Class 6
In the book it is given a as answer, then why b in trainer why why why?

Ans 9: (Master Answer)

Class : Class 1
Here, the answer is B. Air, water and food are necessary for the survival of any living organism. So, in the absence of any one of these components an organism cannot survive. Hence, the grasshopper died due to the lack of air and food, although water was provided.

Ans 10:

Class : Class 8
question is about sealed glass box,so there is no supply of oxygen,hence answer is 'a' only.

Ans 11:

Class : Class 5

Ans 12:

Class : Class 3
But in the book its a

Ans 13:

Class : Class 4
a

Ans 14:

Class : Class 5

Ans 15:

Class : Class 9
SAIKARAN and kailash patra, you are right . SOF , check your book (if you have any left) .

Ans 16:

Class : Class 7
Air , water and food are essential for living things to survive on Earth. Therefore, in the absence of anyone of these an organism will die. Hence, the the grasshopper will die in the absence of air and food although water was provided in the sealed glass tank. Hence, option(b) is the correct answer.🦗

Ans 17:

Class : Class 3
awnser will be A because air is mch important then food and water.

Ans 18:

Class : Class 3
rrrrrrrrrrrrriight for meee

Ans 19:

Class : Class 9
answer should be A.

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
The correct option is B

Ans 2:

Class : Class 8
The right one is option 'A'-30 mins

Ans 3:

Class : Class 8
The correct option is B

Ans 4:

Class : Class 8
The correct option is B

Ans 5:

Class : Class 8
A

Ans 6:

Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Due to deficiency of Calcium.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
No, i think it's c

Ans 2:

Class : Class 10
No, the answer for this is C and D .reason for answer D is excess of food leads to loss of nutrients especially Vitamin C. answer C because it is necessary to preserve pulses, grains otherwise they will rot.

Ans 3:

Class : Class 6
Answer should be C as excess food is wastage.

Ans 4:

Class : Class 9
the answer is C

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
sorry for my wrong answer

Ans 2:

Class : Class 7

Ans 3:

Class : Class 6

Ans 4:

Class : Class 8
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Ans 5:

Class : Class 6
b can also be the answer

Ans 6:

Class : Class 5
Correct answer is D

Ans 7:

Class : Class 6

Ans 8:

Class : Class 7

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
xccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8
monibuvxrzghjbhjfcdgbnmbhcthjhvvuuuvuuvuvvvuvvuvvuuvvuvuvvjo;kkkk

Ans 4:

Class : Class 6
It's all of these not none of these.

Ans 5:

Class : Class 8
@Sudarshan its NOT INVOLVED

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
The answer is B!!!

Ans 2:

Class : Class 10
It was a very tricky question at the moment , but when you see the logic , you think "GOSH how come i could not work out the logic of this question , me , the expert al solving logical reasoning" :)

Ans 3:

Class : Class 7
B

Ans 4:

Class : Class 4
B

Ans 5:

Class : Class 1
b

Ans 6:

Class : Class 7
i didn't understand the logic

Ans 7:

Class : Class 4
B

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