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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
Molars and Premolars are mainly used to chew the food.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
Can someone pls send the explanation of why it's D🙏

Ans 3:

Class : Class 7

Ans 4:

Class : Class 3

Ans 5:

Class : Class 7

Ans 6:

Class : Class 3
such questions r always confusing.................

Ans 7:

Class : Class 7
The solution: Enzyme X works best and increases the rate of reaction at an acidic pH (less than 7) of about two2️⃣ ! Enzyme Y is very very very very very very very very very very very very very very very very very efficient @ slightly acidic pH i.e., slightly less than seven!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Enzyme Z is most efficient at an alkaline pH (more than 7!!!). And alkali means a base which is soluble in water. In humans, gastric juice of stomach (a J-shaped bag with thick inner walls. Meh.) has pH in the range of 1.5-2.5, where enzymes such as pepsin, rennin etc. carry out the digestion of food. Thus, enzyme X can be found in stomach. Similarly, the saliva in the mouth of humans has sliiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiightly acidic pH of 6.8, where salivary amylase enzyme is moooooooooooooooooooooooooooooooooooooooost effective! Thus, enzyme Y can be found in the buccal cavity. Small intestine has slightly alkaline pH of 7.8, where enzymes such as trypsin help in digestion of food. So, enzyme Z can be found in duodenum. Morus Alba is the scientific name of mulberry.

Ans 8:

Class : Class 7
Is D. ✔

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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:

Class : Class 3

Ans 2:

Class : Class 5
B IS THE ANSWER ANURADHA NAIR 4C

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
The answer was supposed to be CFC .

Ans 2:

Class : Class 4
Chloro-fluro-carbon

Ans 3:

Class : Class 4
how the released gas from refrigerator is CO2

Ans 4:

Class : Class 4
Actually it is b ,as a is CNG(compressed natural gas which is a energy source that is not a greenhouse gas

Ans 5:

Class : Class 5
The correct answer should be CFC

Ans 6:

Class : Class 5

Ans 7:

Class : Class 3

Ans 8:

Class : Class 5

Ans 9:

Class : Class 4
the ans should be CFC

Ans 10:

Class : Class 4
THE OPTION SHOULD HAVE BEEN CFC OR WE CAN TAKE THE OPTION D [NITROGEN] BUT IT IS SHOWING WRONG

Ans 11:

Class : Class 3
the correct answer is CFCs .but is not mention in the option.

Ans 12:

Class : Class 1
It should be CFCS

Ans 13:

Class : Class 5
I GOT IT CORRECT

Ans 14:

Class : Class 4
The answer is B as when we use electricity fuel gets burnt and so it produces carbon dioxide.

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
master answwer really

Ans 2:

Class : Class 5
ans is D

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
It should be B as no change of current is there in Y.

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6

Ans 5:

Class : Class 8

Ans 6:

Class : Class 8
I agree with Abhaid Goel.

Ans 7:

Class : Class 6
i agree with him too

Ans 8:

Class : Class 8
correct answer should be option B because there is no change in the current passing through lamp Y.

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