National Science Olympiad Forum By SOF Olympiad Trainer - Page 90

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
hey you inknoledgeble (SOF)

Ans 2:

Class : Class 7
The correct answer is D because if you draw the axis and the equator, it will make a sign like a tilted x and the option that most relates to the shape we've received is option D(Master Answer)

Ans 3:

Class : Class 5
The earth is tilted on its axis and the equator divides the earth into northern hemisphere and Southern Hemisphere. So, if we just imagine to remove the planet and just leave the axis and equator, we will get an X. To visualise take a piece of paper and rool it into a ball and draw a in the middle. Then tilt it a bit and you will get a model of the earth. Then it forms a X. So the answer is D.

Ans 4:

Class : Class 4
Awnswer is D

Ans 5:

Class : Class 5
Answer should be D because equator is not slanting but if we mix equator and axis of the earth it will be criss crossed.

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
(MASTER ANSWER) NONE OF THESE SHOULD BE THE ANSWER

Ans 8:

Class : Class 7
A as D shows criss crossed lines and equator isn't like that

Ans 9:

Class : Class 8

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Subject :NSO    Class : Class 4

Some children wanted to find out how overcrowding can affect plant growth. They took four pairs of plants, A, B, C and D, as shown here and kept them at the same location. Each pot is given the same amount of water each day. Which pair of plants will give the correct result of their experiment?

A
B
C
D


in option C the amount of soil is the same but in the first pot there are less flowers and in the other pot there are more flowers and they both havegood soil

Ans 1:

Class : Class 5
They will see somesh

Ans 2:

Class : Class 5
Thanks so much Mohhika

Ans 3:

Class : Class 8

Ans 4:

Class : Class 7

Ans 5:

Class : Class 4
c answer is corect

Ans 6:

Class : Class 4

Ans 7:

Class : Class 6
No one will see mohhika

Ans 8:

Class : Class 8
c is right

Ans 9:

Class : Class 5
C is correct

Ans 10:

Class : Class 4
I thought it was D. :(

Ans 11:

Class : Class 7
C is the anwser

Ans 12:

Class : Class 4
Ans A

Ans 13:

Class : Class 4

Ans 14:

Class : Class 7
C is the anwser

Ans 15:

Class : Class 5
ahana bag, in option d the soil in more plants is less and in option c the soil in both the pots are same. Just wanted to tell that you might be blind!!

Ans 16:

Class : Class 5
my C and D are same

Ans 17:

Class : Class 7
Dear friends, see the question and the options clearly.As they have said in the question, the experiment is on how overcrowding affects plant growth.For that, the conditions in which the plant(s) are growing should be the same. That means that the amount of sunlight, amount of water, amount of soil and condition of soil should be the same, whereas the number of plants growing in one pot, should not..As we are assured in the question, they are already giving the same amounts of sunlight and water to the plants.We only have to see that the amount and condition of soil is the same, and that, my friends, is only in option 'C'.So, that i.e option 'C', is the correct answer.

Ans 18:

Class : Class 5
a crowing will effect

Ans 19:

Class : Class 5
Answer is option C.!

Ans 20:

Class : Class 5
Answer should be C because good soil means soil having essential nutrients and poor soil means the soil which is not having essential nutrients.In the option C,the checking of soil is by purity.In option D,the soil amount is different.

Ans 21:

Class : Class 9

Ans 22:

Class : Class 9
the options C and D are same

Ans 23:

Class : Class 8
C

Ans 24:

Class : Class 8
C

Ans 25:

Class : Class 7
YAR AGAR NCO HOTA 2020 MEIN TO MAZA AATA KYON KI LAST YEAR MAIN THA WINNER

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Subject :NSO    Class : Class 4

The given graph is plotted according to the recordings of an experiment to find out the effect of temperature on the rate of photosynthesis in an aquatic plant. Based on the given graph, select the correct option.


A Photosynthesis occurs best at 35°C.
B No photosynthesis takes place at 5°C and 45°C.
C The volume of oxygen collected keeps increasing with increasing temperature.
D Volume of oxygen collected at 15°C is higher than that collected at 40°C temperature.


oxygen is not taken by plants during photosynthesis

Ans 1:

Class : Class 3
the answer is A

Ans 2:

Class : Class 7

Ans 3:

Class : Class 5
Answer is A because the straight line shows in which temperature photosynthesis occurs best.

Ans 4:

Class : Class 4

Ans 5:

Class : Class 4

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d d D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D D

Ans 8:

Class : Class 5
the answer can be a and d

Ans 9:

Class : Class 7
the answer is a

Ans 10:

Class : Class 5

Ans 11:

Class : Class 3
I agree with harsh

Ans 12:

Class : Class 4
Option a

Ans 13:

Class : Class 5
the answer can be both a and photosynthesis happen best at 35 degree cand the volume of oxygen collected in 15dc is more than 45dc.

Ans 14:

Class : Class 8
Option ( A ) is correct because the graph shows that Photosynthesis best occurs at 35 degree Celsius

Ans 15:

Class : Class 8
* Harsh are you mad , the volume of oxygen collected at 15 degree Celsius is lower than the volume of oxygen collected at 40 degree Celsius *

Ans 16:

Class : Class 9

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7

Ans 2:

Class : Class 4
Option c

Ans 3:

Class : Class 5
Answer is C because the graph is showing different levels of O2 in the atmosphere and Y has less oxygen in the atmosphere.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
Answer is D because Venus has the high amount of carbon dioxide which traps the heat of the sun.

Ans 2:

Class : Class 4
D

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Subject :NSO    Class : Class 4

Select the correct sequence of words to fill the blanks in the following sentences.
(A) ___1___ fibres do not absorb sweat.
(B) ___2___ and ___3___ wear white coats.
(C) ___4___ is the traditional dress of Korea.

----------1------------2-------------3-------------4
ANatural----Lawyers ----Doctors-----Kimono
BSynthetic--Policemen---Firemen----Mundu
CNatural-----Gardener ----Plumber----Phiran
DSynthetic---Doctors------Nurses------Hanbok


got confused😌

Ans 1:

Class : Class 5
Answer is D because one natural fiber,wool,absorbs sweat,hanbok is the traditional dress of Korea and doctors and nurses wear white coats.

Ans 2:

Class : Class 5
http://google0123.com/

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
the answer should be b as frictional force prevents us from slipping. it does not help us to walk on the ground

Ans 2:

Class : Class 9
d

Ans 3:

Class : Class 5
it is D

Ans 4:

Class : Class 4
Answer should be B

Ans 5:

Class : Class 6
ANSWER D IS NOT GIVEN PROPERLY'Both A and ----?

Ans 6:

Class : Class 4
Answer A.

Ans 7:

Class : Class 4
Is wrong because friction does not help us to walk. Even without friction, we can walk but not without gravity.

Ans 8:

Class : Class 5
A because friction helps us to walk on the ground

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Answer is D because the going right arrow in the land tells us as sun sets,land cools faster than sea.

Ans 2:

Class : Class 5
Answer is D because the going right arrow in the land tells us as sun sets,land cools faster than sea.

Ans 3:

Class : Class 7
d

Ans 4:

Class : Class 7
D as land cools faster than sea and option D is incorrect

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
I think answer is A.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
correct........my mistake

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
Option A should be correct ✔✔✔

Ans 4:

Class : Class 5
A option building embankment s

Ans 5:

Class : Class 4
AFFORESTATION IS CORRECT OR NOT

Ans 6:

Class : Class 6
Hmm... It could also be B..

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