National Science Olympiad Forum By SOF Olympiad Trainer - Page 103
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Aniket Nagane from Elpro International School Chinchwad, Pune
Subject :NSO    Class : Class 5

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Sanaya pankule from Bvm, Nagpur
Subject :NSO    Class : Class 2

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Swaroop G Mendon from Euroschool Chimney Hills, Bengaluru
Subject :NSO    Class : Class 8

Refer to the given figures of bacteria X, Y and Z and read the statements (i), (ii), (iii) and (iv) regarding them.

(i) Bacterium X can be causal organism of typhoid.
(ii) Bacterium Y can cause a disease which disrupts proper exchange of gases.
(iii) Bacterium Z can convert lactose sugar of milk into lactic acid.
(iv) Bacterium X can be the causal organism of cholera.
Which of these statements are incorrect?

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


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Gayatri Iyer from Sanskriti School, Pune
Subject :NSO    Class : Class 7

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Bhanvi Chowdhary from Innocent hearts , jalandhar
Subject :NSO    Class : Class 9

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Arnav Nandan from ST PETERS COLLEGE AGRA, Agra
Subject :NSO    Class : Class 7

Read the following statements and select the correct option.

Statement 1: Coniferous trees have needle-shaped leaves.
Statement 2: This helps them to cope with shortage of water when the ground is frozen in water.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true but statement 2 is false.
DBoth statements 1 and 2 are false.


I thought that the needle-shaped leaves are present so that the snow which fell on the leaves can slide off

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Mihika Hivarekar from Global Indian International School, Pune
Subject :NSO    Class : Class 5

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Aishni Biswal from Bal Bhavan Public School, New Delhi
Subject :NSO    Class : Class 7

Ans 1:

Devyansh from Golden Days Universal School, Nashik
Class : Class 7
B should be the correct answer as the food is getting oxidised in circulatory system

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dilneet from hindu vedyapeet , Sonipat
Subject :NSO    Class : Class 8

Ans 1:

dilneet from hindu vedyapeet , Sonipat
Class : Class 8
cholera , anthrax , tuberculosis , typhoid

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Kavyam Rustagi from Army Public School Bolarum Secundrabad, Secundrabad
Subject :NSO    Class : Class 2

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