National Science Olympiad Forum By SOF Olympiad Trainer - Page 462

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
C

Ans 2:

Class : Class 7
c, 15 is betwwen 1st and last student. gender of first and last student not known

Ans 3:

Class : Class 7
option c

Ans 4:

Class : Class 7
option c

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Subject :NSO    Class : Class 4

Ten male animals each of type X and Y were living together for few months in captivity in a well defined area (full of greenery). Other types of animals were not present in this area. Then an animal Z was introduced in this area. After few days, their numbers were counted as shown here.

  X      Y      Z
  10      2     1
What does this indicate?
A Z is a carnivore.
B Y is a herbivore.
C X is a herbivore.
D All of these


Ans 1:

Class : Class 7
But then (to continuation of solution) how did number of X animal remain the same?MASTER ANSWER from Revisewise Noida please EXPLAIN.

Ans 2:

Class : Class 5
bhavya in opinion you are correct

Ans 3:

Class : Class 6

Ans 4:

Class : Class 8
A

Ans 5:

Class : Class 6

Ans 6:

Class : Class 6
is x a giraffe or a elephant

Ans 7:

Class : Class 5
IF X AND Y ARE BOTH HARBIVORES THEN WHY DIDNT Z EAT X? SO I THINK X WILL BE CARNIVORE

Ans 8:

Class : Class 4
I think X is the carnivore right?

Ans 9:

Class : Class 1
The area is full of greenery as mentioned so the herbivore population will increase and as we know carnivores depend on other animals for prey so their population will decrease as they do not eat plants

Ans 10:

Class : Class 4
Y is a herbivore

Ans 11:

Class : Class 6
I think X is carnivore and their(X

Ans 12:

Class : Class 8

Ans 13:

Class : Class 4
Y is a herbivore

Ans 14:

Class : Class 6
if x and y were herbivores and z is a carnivore then why did z eat only y and not x

Ans 15:

Class : Class 8

Ans 16:

Class : Class 6
If Z is a carnivore sof then how did X population remains same ?

Ans 17:

Class : Class 6

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 7
it is c because concave mirror is used in a solar cooker

Ans 2:

Class : Class 6
It is C Because concave mirror is used in solar cooker not plane mirror.

Ans 3:

Class : Class 9

Ans 4:

Class : Class 8
D

Ans 5:

Class : Class 8
I THINK IT'S "D"

Ans 6:

Class : Class 9
its c as solar cookers have concave mirror and not plane mirror

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 8
Please explain

Ans 3:

Class : Class 4
both p and q will bacome brighter beacause the voltage will increase

Ans 4:

Class : Class 10

Ans 5:

Class : Class 8
I do not understand this.why is the answer not C?if the circuit is closed then both bulbs should light up.

Ans 6:

Class : Class 10

Ans 7:

Class : Class 1
why is there no solution for this question?

Ans 8:

Class : Class 7
P should at least light up

Ans 9:

Class : Class 8

Ans 10:

Class : Class 8
Can someone pls explain

Ans 11:

Class : Class 9

Ans 12:

Class : Class 7
Why is it so ?It is a closed circuit,right?Then surely as a matter of sense it will be 'C'

Ans 13:

Class : Class 7
The answer is C, there is no factor that even hints at P not glowing.

Ans 14:

Class : Class 4
there is no solution

Ans 15:

Class : Class 8
Wrong answer key

Ans 16:

Class : Class 8
even i think its c

Ans 17:

Class : Class 9
It should be C

Ans 18:

Class : Class 7
Is solution available for this question?

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
I think it should be I-e and II-d..... The egg and cocoon stage is not the least active cuz THEY DONT EVEN EAT A BIT..... so yaaa

Ans 2:

Class : Class 8
BBBBBBBBBBBBBB

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 9
Can someone explain why the answer is C?

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
127

Ans 2:

Class : Class 8
Yes the answer must be 127

Ans 3:

Class : Class 7
well, the answer is right because it is asking the 7th term.

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