National Science Olympiad Forum By SOF Olympiad Trainer - Page 793
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Hemant Ayuj from Shanti Asiatic, Ahmedabad
Subject :NSO    Class : Class 6

Ans 1:

pinki kashyap from kids r kids, Chandigarh
Class : Class 7
its D as the force of attraction and repulsion(depicted by arrows)should be equal i.e if there are arrows of repulsion(going north either south)is 2 then there should be equally 2 arrows of attraction.

Ans 2:

S SAHITHYAA RAMAN from Padma Seshadri T Nagar, Chennai
Class : Class 7
Correct answer is d

Ans 3:

Tushar from DPS, Bengaluru
Class : Class 9
Correct answer is option D.

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Hemant Ayuj from Shanti Asiatic, Ahmedabad
Subject :NSO    Class : Class 6

Ans 1:

SUVAMDEBNATH from KVS BAMANGACHI, Howrah
Class : Class 9
B

Ans 2:

Tushar from DPS, Bengaluru
Class : Class 9
Higher the height, higher the potential energy. Hence the correct option is B.

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bharat gawade from ,
Subject :NSO    Class : Class 6

Ans 1:

Tushar from DPS, Bengaluru
Class : Class 9
Correct option is B.

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bharat gawade from ,
Subject :NSO    Class : Class 6

Ans 1:

HARSHAL KUTE from cambridge school buldhana, Buldhana
Class : Class 6
Aren't jute plants biodegradable and replenishes earth's nutrient????

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bharat gawade from ,
Subject :NSO    Class : Class 6

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bharat gawade from ,
Subject :NSO    Class : Class 6

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bharat gawade from ,
Subject :NSO    Class : Class 6

Ans 1:

Ajit kumar from centre point, NAGPUR
Class : Class 4
Ans b As less water is absorbed by soil so there is scarcity of water. Leaves of pine trees are modified to spines as the surface area of needle like leaves is much less than normal leaves and less transpiration is done by them. In that way pine trees save water.

Ans 2:

SANAJY GOPAL BHARTARIYA from ST. FIDELIS COLLEGE, LUCKNOW
Class : Class 6
leaves of pine trees are needle like so that snow falls easily and do not collect on the leaves so i think the answer is wrong

Ans 3:

ansh mehta from rajhans vidyalaya, Mumbai
Class : Class 7
I agree with you, sanajy, this adaptation is done in desert plants. In mountaineous plants its done for something else.

Ans 4:

sachinthite@rocketmail.com from Sinhghad Public School Korti, Pandharpur
Class : Class 4
ok dadaaaa

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bharat gawade from ,
Subject :NSO    Class : Class 6

Ans 1:

ISHRAT SINGLA from D.A.V. PUBLIC SCHOOL, B.R.S. NAGAR, LUDHIANA., Ludhiana
Class : Class 9
Yes it should be done

Ans 2:

Shreyas Gupta from CHIREC International, Hyderabad
Class : Class 8
ya bro

Ans 3:

Mohinder singh from Sacred heart convent school, Ludhiana
Class : Class 7
Demonstrate the same with the help of a picture so as to have a better understanding of this question.

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bharat gawade from ,
Subject :NSO    Class : Class 6

Ans 1:

Ajit kumar from centre point, NAGPUR
Class : Class 4
Ans D As the bird population decreases the caterpillar population will increase as there will be no one to eat the them and control their population.

Ans 2:

Tishyo BANDYOPADHYAY from , Kolkata
Class : Class 3

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bharat gawade from ,
Subject :NSO    Class : Class 6

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