Subject :NSO Class : Class 4
Subject :NSO Class : Class 4
Ans 3:
Class : Class 2
Answer C is the correct answer as incisors which are present in front most teeth help to bite the food. canines are present just after incisors and help to tear the food. premolars are present just after canines which help to crush the food. molars are present at the last which help us chew and grind the food.
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 5
Ans 3:
Class : Class 6
answer is wrong because if we apply tourniquet it may damage the nerves. the poison will remain its place but it may kill all the cells there
Ans 7:
Class : Class 5
souvik is saying 'avoid giving water to the person in case of poisoning so the poison does not spread in the body. and tying torniquet just above the wound will spread the poison more. so, the answer should be C
Ans 8:
Class : Class 6
I think answer is wrong , use of tourniquet was preferred method until few years ago , it has been found it can damage blood flow and nerves
Ans 10:
Class : Class 6
I think answer is wrong. Shivani is also right. Using a tourniquet prevents the poisoned blood from reaching the heart.
Ans 11:
Class : Class 3
Answer is wrong, Souvik is saying 'avoid' while the answer is giving a different explanation .All Samrak, Souvik and Shivani are wrong.
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Subject :NSO Class : Class 3
Refer to the given conversation between two friends.
Select the option that correctly identifies
the modes mentioned by Sarthak and Nishant.
| Sarthak | Nishant | |
| A | Fax | Telegram |
| B | Courier | |
| C | Post | |
| D | Courier | Post |
The answer is C .
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Subject :NSO Class : Class 7
Ans 3:
Class : Class 4
C is the correct answer. Force is applied to stop the vehicle. The formulae of force is mass * acceleration. Acceleration is final velocity - initial velocity by time. F= M*{(v-u)/t} and its kinetically equation is F=M *[v square - u square/ 2 * distance]. Which ever formula for force has been taken MASS is important. So clearly MASS HAS A ROLE TO PLAY. hence the answer must be C
Ans 5:
Ans 8:
Class : Class 6
Though it looks like mass has no role to play in braking distance, actually coeff of friction (COF) between tyre and road surface has inverse relationship with braking distance. COF depends on normal force due to weight of vehicle and therefore indirectly mass plays a role on braking distance. The correct answer should be C
Ans 9:
Class : Class 9
Apropos to the question the mass of the car has a role in the momentum of the car, as Momentum=mv ,therefore option 'C' should be the correct answer.
Ans 10:
Class : Class 8
c is the correct answer and solution is also given in favour of option c. but answer is b
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Subject :NSO Class : Class 7
Ans 5:
Class : Class 8
The leaves should be destarched first, so that there is no presence of starch prior to the experiment in any of the leaves. In that manner, the experiment will be more clear. Therefore, Option A is also a potential answer.
Ans 7:
Class : Class 7
The plant should be destarched first and then used for the experiment To accurately test for the presence of starch in leaves X and Y.
Ans 10:
Class : Class 7
it should be destarched first then keep the setup in sunlight because if we will directly test the presence of starch both the leaves will show blue -black color as there will be starch already present in both of them. So the correct answer should be OPTION A