National Science Olympiad Forum By SOF Olympiad Trainer - Page 75

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Subject :NSO    Class : Class 4

The given statements which summarise the process of digestion are not given in a correct sequence. Arrange them in sequence and select the correct option.
P. Absorption of water
Q. Churning of food and addition of digestive juices
R. Mixing with saliva
S. Complete digestion of food and absorption of nutrients
T. Expulsion of faeces

A R → Q → S → P → T
B R → S → Q → P → T
C R → Q → P → S → T
D R → P → Q → S → T


Ans 1:

Class : Class 5

Ans 2: (Master Answer)

Class : Class 1

The correct answer is A.

When food is taken in the mouth, it is chewed and gets mixed with saliva secreted in the mouth (R). Once swallowed, the food moves through the oesophagus into the stomach where churning and digestion of food with digestive juices occurs (Q). The semi-digested food then moves into the small intestine where complete digestion as well as absorption of nutrients occur (S). From the undigested food, the water is absorbed in the large intestine (P). After this, the undigested food is expelled through the anus in the form of faeces (T).


Ans 3:

Class : Class 5
The correct answer is option A.

Ans 4:

Class : Class 4
i am dr manali parmar

Ans 5:

Class : Class 5

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
the correct answer is: A

Ans 8:

Class : Class 3
The graph X-Axis is not describing digestive system it is describing four components of food which are carbohydrates, proteins, fats, and vitamins and minerals. So, vitamins and minerals are same before digestion and after digestion. answer is S.

Ans 9:

Class : Class 4

Ans 10:

Class : Class 7

Ans 11:

Class : Class 7
The correct answer is A

Ans 12:

Class : Class 9
option A

Ans 13:

Class : Class 6

Ans 14:

Class : Class 5

Ans 15:

Class : Class 7

Ans 16:

Class : Class 4

Ans 17:

Class : Class 7
A is the correct answerWhen food is taken in the mouth, it is chewed and gets mixed with saliva secreted in the mouth (R). Once swallowed, the food moves through the oesophagus into the stomach where churning and digestion of food with digestive juices occurs (Q). The semi-digested food then moves into the small intestine where complete digestion as well as absorption of nutrients occur (S). From the undigested food, the water is absorbed in the large intestine (P). After this, the undigested food is expelled through the anus in the form of faeces (T).

Ans 18:

Class : Class 7

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Subject :NSO    Class : Class 4

In a research, it is proved that in old age one should take more quantity of proteins in diet than any other group of food. Which of the following justifies this?

A Proteins help to repair and build muscles. In old age, muscle growth increases, hence protein intake should be more.
B Proteins help to repair and build muscles. In old age, muscles become weak, hence protein intake should be more.
C Proteins give energy to the body. In old age, the body needs more energy to work, hence protein intake should be more.
D Proteins give energy to the body. In old age, the body uses stored fat hence, protein intake should be more.


Ans 1:

Class : Class 5
Proteins act like building blocks of our body

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
B. Protein intake should be more. It repair and build muscle

Ans 4:

Class : Class 8

Ans 5: (Master Answer)

Class : Class 1

The correct answer is B.

 


Ans 6:

Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
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Subject :NSO    Class : Class 4

The descending order of heat conducting property of four metals a, b, c and d is a > b > c > d.
An experiment was conducted to find out how these different metals, when combined, will conduct heat. A small ball of candle wax was placed on one end and a flame near the other end. The set-ups are shown below. In which set-up will the wax drop off first?

A
B
C
D


Good night images with baby pictures and pics of the page for an email address for the program to be in the process of getting the the one who is the cleverest birbal or gopal bhar ke liye bhi kuch nahi hai kya tu bhi na kabhi to nahi hai kya tu bhi na kabhi to nahi hai kya tu bhi na

Ans 1:

Class : Class 6
Ishit and Riddhiman thank you for clearing my doubts

Ans 2: (Master Answer)

Class : Class 1
Kindly mention your query

Ans 3:

Class : Class 5
Thanks Again Ishit, Riddhiman, and Avyukt!🙏

Ans 4:

Class : Class 5

Ans 5:

Class : Class 4
there is no necessity of mentioning the words: "descending order". This is contradictory to the statement: A>B>C>D. Hence the question is wrong.

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
The answer has to be D.

Ans 8:

Class : Class 4

Ans 9:

Class : Class 5
That answer is D as b,a and b are the best conductors of heat so the heat would pass through b,a and b faster and it is balanced.Nice question.

Ans 10:

Class : Class 5
class 4

Ans 11:

Class : Class 4
The answer can either be B or D.

Ans 12:

Class : Class 7
That answer is D as b,a and b are the best conductors of heat so the heat would pass through b,a and b faster and it is balanced.Nice question.

Ans 13:

Class : Class 5

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
the answer is c means dehydration

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Subject :NSO    Class : Class 4

Sarika read that woodlice are usually found under piles of damp rotting leaves. She suggested four possible explanations for this behaviour.
1. Woodlice need rotting leaves.
2. Woodlice find their food there.
3. Woodlice need dark conditions.
4. Woodlice need a damp environment.

The above diagram shows the experiment which Sarika had conducted. Which above explanation regarding the behaviour of the woodlice was tested by Sarika?

A 1
B 2
C 3
D 4


Ans.4

Ans 1:

Class : Class 6
Why is the answer D? This is because it says that woodlice are found typically under damp rotting leaves. For the test, Sanika kept rotting leaves on dry and damp soil. If you read the question carefully, you will find that Sanika had stated that woodlice needed a damp environment as a possible explanation as to why woodlice were found under damp rotting leaves. She even placed the woodlice pointing to the rotting leaves with damp soil under it. Based on this, she was most probably testing the 4th explanation she stated and so that, my friends, is why option D is the correct answer.

Ans 2:

Class : Class 6

Ans 3:

Class : Class 4
4

Ans 4:

Class : Class 7
dont understand it

Ans 5:

Class : Class 8
Does anyone have an explanation here?

Ans 6:

Class : Class 4
4

Ans 7:

Class : Class 6
It is easy, read the solution propperly and then you find the answer

Ans 8:

Class : Class 7
I also didn't understand the question.

Ans 9:

Class : Class 7

Ans 10:

Class : Class 6
COMPLICATED stuff!!!!!.......

Ans 11:

Class : Class 5
tough

Ans 12:

Class : Class 4
This question is too complicated

Ans 13:

Class : Class 6
The Solution is not explaining in a way through which we can undestaand

Ans 14:

Class : Class 6

Ans 15:

Class : Class 7
I don't get it.I wish that the person who's answer is always labelled as Master Answer,Admin from reviwise comes and answers this question.

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Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
The answer is- The blue whale.

Ans 2:

Class : Class 4
There Are 6 LARGEST Fishes in The World.(1) Great White Shark.(2) Beluga.(3) Greenland Shark.(4) Basking Shark.(5) Giant Oarfish.(6) Whale Shark.

Ans 3:

Class : Class 7
The answer is- The blue whale.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
22

Ans 2:

Class : Class 4
D

Ans 3:

Class : Class 4
22

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