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Pranav Kannan from Phoenix Greens, Hyderabad
Subject :NSO    Class : Class 3

Ans 1:

Pranav Kannan from Phoenix Greens, Hyderabad
Class : Class 3

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Aneesh Rajput from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Subject :NSO    Class : Class 4

Ans 1:

ASHMI Narkar from Vibgyor High Airoli, Navi Mumbai
Class : Class 4
Pls explainI agree with shreyansh2010

Ans 2:

vineet8026@gmail.com from dps, Doha
Class : Class 1
How???????

Ans 3:

shreyansh2010 from Prudence, New Delhi
Class : Class 5
Got it as green color reflected thus will not be used for photosynthesis

Ans 4:

Harry Potter from Hotel California, California
Class : Class 4
Answer C is correct because Red and Blue light are absorbed and used for Photosynthesis . But in D it is written Green light is reflected ( correct ) but is used for Photosynthesis ( incorrect )

Ans 5: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Ans 6:

vineet8026@gmail.com from dps, Doha
Class : Class 1
Thanks for the answer. ......

Ans 7:

shreyansh2010 from Prudence, New Delhi
Class : Class 5
Answer D look like correct too

Ans 8:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 5

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Rikhil Gupta from Christ Academy, Bengaluru
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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nageshrc228 from yuvabharathi international school, Singapore
Subject :NSO    Class : Class 4

Ans 1:

ikshika kumar from MVN SCHOOL, FARIDABAD
Class : Class 4
B) West

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sheetal Gupta from ,
Subject :NSO    Class : Class 5

Ans 1:

Khushie from Gdgps gurugram, Gurgaon
Class : Class 5
C is correct

Ans 2:

Swarit from Indian School Wadi kabir, Muscat
Class : Class 5
Observe the given diagram carefully which shows a reflex arc. The diagram is show a finger touching the flame of the burning candle. The Sensory Neuron P takes the message of the burning finger to the Relay Neuron R in spinal cord. The Motor Neuron Q takes the message from the Relay Neuron R to the related muscle to act accordingly and pull the finger away. Now, if the orientation of Motor Neuron Q is changed (red arrow) and made as that of Sensory Neuron P, that means message from Motor Neuron Q will go from Muscle to the Relay Neuron R. Now, let’s check the following options to see what will happen: A.All voluntary movements of body including reaction to heat will stop. ----- Incorrect. Reaction to heat is an involuntary reflex response. It will stop if the orientation of Motor Neuron Q is changed. But voluntary movements of the body, which are in control of our brain, will go on. B.The sensory receptor will not get stimulus from the candle. ----- Incorrect. The orientation of Sensory Neuron P is still the same, so sensory receptors in spinal cord will continue to get the stimulus of heat from the candle. C.The motor organ will not be able to get instructions from the spinal cord. ----- Correct. The orientation of Motor Neuron Q has been changed, so instruction from spinal cord will not reach the motor organ (muscle). It will go from muscle to the spinal cord instead. D.None of these ----- Incorrect. Hence, the right answer is Option C.

Ans 3:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 6

Ans 4:

HIMANISH BASU from APS BANGALORE , Bangalore
Class : Class 6

Ans 5:

Swarit from Indian School Wadi kabir, Muscat
Class : Class 5
this question is so hard

Ans 6:

Yash Tulshyan from Sterling school, New Mumbai
Class : Class 5

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sheetal Gupta from ,
Subject :NSO    Class : Class 5

Ans 1:

Khushie from Gdgps gurugram, Gurgaon
Class : Class 5
C

Ans 2:

SHAURYA SINHA from GREEN FIELDS SCHOOL , NEW DELHI
Class : Class 5
Ans- C

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Ankush Ghosh from DPS, Doha
Subject :NSO    Class : Class 5

Ans 1:

Karan Chavan from GIIS,Chinchwad, Pune
Class : Class 5
b

Ans 2:

Karan Chavan from GIIS,Chinchwad, Pune
Class : Class 5
b

Ans 3:

SHREYAS ANANDHAN from Phoenix Greens International School, Hyderabad
Class : Class 6
b

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Anmol kathar from deogiri global academy, aurangabad
Subject :NSO    Class : Class 6

The different steps of vermicomposting are given below randomly.
(i) Spread sand on the floor of the pit
(ii) Place red worms in the pit
(iii) Cover with a grass
(iv) Sprinkle water to keep it moist
(v) Dig a pit in a suitable place
(vi) Add vegetable peels and fruit waste in the pit
Which of the following represents the correct sequence of steps?

A (v) → (vi) → (i) → (iii) → (ii) → (iv)
B (v) → (i) → (vi) → (iii) → (iv) → (ii)
C (v) → (i) → (iii) → (vi) → (ii) → (iv)
D (v) → (ii) → (iii) → (iv) → (i) → (vi)


Ans 1:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 7
in a much better way First we have to dig the ground. (v)| Then we spread sand on the floor of the pit so that the pit remains open for a longer time. (i)| Then we can add the waste we planed to throw in the pit. (vi) | We have to then cover with grass so that the pit remains closed. (iii) | Moisture is required for wastes to decompose. (iv) | We can later place red worms, as they are very good decomposers_ to speedthe decomposing proccess. (ii)|

Ans 2:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 7
First we have to dig the ground. (v) Then we spread sand on the floor of the pit so that the pit remains open for a longer time. (i) Then we can add the waste we planed to throw in the pit. (vi) We have to then cover with grass so that the pit remains closed. (iii) Moisture is required for wastes to decompose. (iv) We can later place red worms, as they are very good decomposers_ to speedthe decomposing proccess

Ans 3:

VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD
Class : Class 6
option B

Ans 4:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 7
in a much better way First we have to dig the ground. (v) Then we spread sand on the floor of the pit so that the pit remains open for a longer time. (i) Then we can add the waste we planed to throw in the pit. (vi) We have to then cover with grass so that the pit remains closed. (iii) Moisture is required for wastes to decompose. (iv) We can later place red worms, as they are very good decomposers_ to speedthe decomposing proccess. (ii)

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Aparna praveen from Rajagiri, Ernakulam
Subject :NSO    Class : Class 4

Ravi set up an experiment as shown in the given figure.The figure shows five identical balls being suspended on a rod by strings of different lengths. Ravi then cut all five strings at the same time and the balls were allowed to fall freely to the ground.

Which of these statements holds true for this experiment?

ABall ‘b’ had the greatest impact on the ground.
BBall ‘a’ had less gravitational potential energy than ball ‘c’ at the start.
CBall ‘d’ had the most gravitational potential energy at the start.
DBalls ‘a’ and ‘e’ had different amounts of gravitational potential energy at the start due to their different positions along the rod.

Ans 1:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 4
aaa aaa aaa

Ans 2:

Abhineet Nandy from DPS Whitefield, Bangalore
Class : Class 4
The answer is [A]

Ans 3:

ikshika kumar from MVN SCHOOL, FARIDABAD
Class : Class 4
A) Ball ‘b’ had the greatest impact on the ground.

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Anmol kathar from deogiri global academy, aurangabad
Subject :NSO    Class : Class 6

Which of the following statements are true about acid rain ?
(i) Acid rain has harmful effects on the living beings.
(ii) Acid rain mainly comprises of H2SO4 and HNO3.
(iii) Greenhouse gases are mainly responsible for causing acid rain.
(iv) Acid rain causes damage to buildings.

A (i) and (ii) only
B (i) and (iii) only
C (i), (iii) and (iv) only
D (i), (ii) and (iv) only


but here option C is also true ,so there have the option as 'all of these'.

Ans 1:

HARSHAL KUTE from cambridge school buldhana, Buldhana
Class : Class 6
all are correct

Ans 2:

ttraj from KV IIT, Chennai, Chennai
Class : Class 3
D

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