National Science Olympiad Forum By SOF Olympiad Trainer - Page 107

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 9

Which of the following statements about characteristics of organelles are correct?
(i) Chloroplast contains its own DNA.
(ii) Lysosomes are specialised structures that eat worn out cell organelles.
(iii) Ribosomes are only found attached to endoplasmic reticulum.
(iv) Thread-like structures called genes are present in the nucleus.

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


Shouldn't the answer be A ?

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
there are 20

Ans 2:

Class : Class 3
there are only 18 plz sof explain how it is 19

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
option b is correct

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 5

One night, Navika watched a constellation in the sky over a period of several hours. She found that the constellation seemed to move across the sky. Which of these can explain this?

ASome constellations are moving constellations
BAs the Earth rotates, constellations seem to move
CThe outer portions of the galaxy rotates very slowly around the Earth
DAll constellations move randomly through the sky


but we all move with the earth and other object so it should not make a difference

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