National Science Olympiad Forum By SOF Olympiad Trainer - Page 607

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9

Ans 2:

Class : Class 6
B

Ans 3: (Master Answer)

Class : Class 1

The correct answer is B.

In the given Venn diagram X, Y and Z represent vitamin D, vitamin E and vitamin K, respectively. Deficiency of vitamin A causes night blindness and deficiency of vitamin C causes scurvy. Pellagra is caused by deficiency of vitamin B3. Vitamin B is a group of several vitamins like B1, B2, B3, B6, B12 and folic acid and is known as vitamin B complex.


Ans 4:

Class : Class 9

Ans 5:

Class : Class 3
What about vitamin A which is also fat soluble and also stored in fat tissues. The answer should be 'D' because the group Y consists of both vitamin A and vitamin E

Ans 6:

Class : Class 6

Ans 7:

Class : Class 6
In the given Venn diagram X, Y and Z represent vitamin D, vitamin E and vitamin K, respectively. Deficiency of vitamin A causes night blindness and deficiency of vitamin C causes scurvy. Pellagra is caused by deficiency of vitamin B3. Vitamin B is a group of several vitamins like B1, B2, B3, B6, B12 and folic acid and is known as vitamin B complex.

Ans 8:

Class : Class 6

Ans 9:

Class : Class 8

Ans 10:

Class : Class 7
EASY PEASY LEMON SQUEEZY!

Ans 11:

Class : Class 6
In the given Venn diagram X, Y and Z represent vitamin D, vitamin E and vitamin K, respectively. Deficiency of vitamin A causes night blindness and deficiency of vitamin C causes scurvy. Pellagra is caused by deficiency of vitamin B3. Vitamin B is a group of several vitamins like B1, B2, B3, B6, B12 and folic acid and is known as vitamin B complex.

Ans 12:

Class : Class 3
What about vitamin A which is also fat soluble and also stored in

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3
D

Ans 2:

Class : Class 8

Ans 3:

Class : Class 4

Ans 4:

Class : Class 6

Ans 5:

Class : Class 5

Ans 6:

Class : Class 5
d

Ans 7:

Class : Class 8
Explain how and why D?

Ans 8:

Class : Class 6
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Ans 9:

Class : Class 9
D

Ans 10:

Class : Class 8

Ans 11:

Class : Class 8
very intelligent question , and answers too

Ans 12: (Master Answer)

Class : Class 1

The correct answer is D.

X is oesophagus with no change in amount of undigested food. Y is stomach and Z is small intestine with decreasing amount of undigested food and P is large intestine as no further digestion occurs here.


Ans 13:

Class : Class 6

Ans 14:

Class : Class 4

Ans 15:

Class : Class 4

Ans 16:

Class : Class 9
why d please explain

Ans 17:

Class : Class 3
Thank you Admin for explaining. It was helpful.

Ans 18:

Class : Class 9

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
amount of water entering the cell is osmolarity

Ans 2:

Class : Class 9
what is osmolarity

Ans 3:

Class : Class 9
the concentration of a solution expressed as the total number of solute particles per litre.

Ans 4: (Master Answer)

Class : Class 1

The answer is C

The rate of contraction increases as osmolarity decreases because amount of water entering X by osmosis increases. 


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7

Ans 2:

Class : Class 6
HELLO ANYONE who appeared for CLASS V - IGKO .. Can you please share the question paper for IGKO Class 5 conducted on 11th Sep and 25th Sep please please share on email ahkhan00@yahoo.com or whatsapp - 9713018111

Ans 3:

Class : Class 8
1+1=2. 2+3=5. 5+5=10. 10+7=17. 17+9=26. 26+11=37. 37+13=50. 50+15=65. 65+17=82 82+19=101 1,3,5,7,9,11, and so on are added to get the next number in the pattern

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 4

Ans 3:

Class : Class 8
Ans.- (B) X is Saccharomyces cerevisiae and is used to make wine. This process of conversion of sugar into alcohol in the absence of air(anaerobic respiration) is called Fermentation (Y)

Ans 4: (Master Answer)

Class : Class 1

The correct answer is B

Microorganisms are used for the large scale production of alcohol, wine and acetic acid. Yeasts are mainly used in the commercial production of wine, beer and other alcoholic drinks. The main yeast species used is Saccharomyces cerevisiae. The process of conversion of sugar into alcohol is known as fermentation. 


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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
thank you

Ans 2: (Master Answer)

Class : Class 1

The correct answer is A

When a disease causing microbe (such as virus) enters body, some white blood cells produce chemicals called antibodies that surround the invader microbe. Once the virus has been surrounded by antibodies the white blood cell eats it.


Ans 3:

Class : Class 6
wow! they are so intelligent, I mean the white blood cells. could anyone please give a detailed explanation of this procedure of how it happens. thanks

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 10
Those are philosophical thoughts which we get in our brain. We are yet to confirm such theories.

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Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1

Please mention your query


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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
b is the answer because using recycled water is a method of conserving water

Ans 2:

Class : Class 6
This question's answer is A, not B because, it pollutes the air but not the water.

Ans 3:

Class : Class 9
b

Ans 4:

Class : Class 4
how the answer to this is bbbbb it is very confusing between a and b

Ans 5:

Class : Class 3
When we pollute the air most likely acid rain will occur so option a is wrong and option b is correct

Ans 6:

Class : Class 8
Two options are confusing A and BA will be air pollution not water pollution please EXPLAIN this master answer you have NEVER EXPLAINED it to me always saying the answer is A or the answer is B or answer is C or D. But why is the answer A B C 0r D you should explain if you don't want to explain don't explain and don't give the answer also Then i'll tell SOF that the master answer from noida is giving the answer to us but not the explanation and in science if we have got the wrong answer then we should also get the explanation of every answer or else how will we understand the answer? we will have a doubt then what will we do

Ans 7: (Master Answer)

Class : Class 1

Ans 8:

Class : Class 4
the ans is B

Ans 9:

Class : Class 9
gcjftytrdmhfeahhfmihgvn

Ans 10:

Class : Class 8
you have given two options that are completely wrong so how can we decide which is correct or wrong

Ans 11:

Class : Class 8
Explain master answerExplain to all of us and meHow is the answerB B B B B B B

Ans 12:

Class : Class 5
both A and B correct. Because A cause air pollution ,not water pollution so even A is correct. SOF should do corrections in such questions.

Ans 13:

Class : Class 9

Ans 14:

Class : Class 4
this question is very confusing between a and b pleeeeese master answer explain to us

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