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Subject :NSO    Class : Class 4

Rohit performed an experiment wherein he set up three test tubes as shown in the figure. Select the INCORRECT statement regarding this.


ATest tube P will have most carbon dioxide after three hours.
BTest tube Q will have least oxygen after three hours.
COrganisms in test tube R will survive for a longer time as compared to organisms in test tubes P and Q.
DNo oxygen will remain in test tube P after some time.


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Ans 1:

Class : Class 5

Ans 2:

Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3
the correct answer is d

Ans 2:

Class : Class 3

Ans 3: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
the field line travels from north to south

Ans 4:

Class : Class 6
the answer is d because the field lines of a magnet always travle from north to south

Ans 5:

Class : Class 7

Ans 6:

Class : Class 6
understood?

Ans 7:

Class : Class 6

Ans 8:

Class : Class 7

Ans 9:

Class : Class 8

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
C

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7
Yes, the answer is option "C". It is not true that arteries will always carry oxygenated blood and the veins will always carry deoxygenated blood (pulmonary vein and artery).

Ans 4:

Class : Class 7
here option c holds true because in option a and b we can make an exception with pulmonary artery and vein.

Ans 5:

Class : Class 7

Ans 6:

Class : Class 7

Ans 7:

Class : Class 8

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
sea snakes also breathe through skin so option 1 should also be correct.

Ans 2:

Class : Class 7

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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 3
such questions r always confusing.................

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

Ans 4:

Class : Class 3

Ans 5:

Class : Class 7

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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 4
B IS THE ANSWER ANURADHA NAIR 4C

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Subject :NSO    Class : Class 4

Ans 1:

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 2:

Class : Class 5
I GOT IT CORRECT

Ans 3:

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

Ans 4:

Class : Class 3

Ans 5:

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

Ans 6:

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

Ans 7:

Class : Class 5
The correct answer should be CFC

Ans 8:

Class : Class 5

Ans 9:

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

Ans 10:

Class : Class 4
the ans should be CFC

Ans 11:

Class : Class 5

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