National Science Olympiad Forum By SOF Olympiad Trainer - Page 362

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Subject :NSO    Class : Class 8

Refer to the given diseases.

(i) Athlete's foot (ii) Amoebic dysentery
(iii) Polio (iv) Cholera
(v) Malaria (vi) Measles
(vii) Pyorrhea (viii) Ringworm
(ix) Typhoid (x) Tuberculosis

Select the option which correctly identifies bacterial diseases (P), viral diseases (Q), protozoan diseases (R) and fungal diseases (S).
  P Q R S
A (iii), (iv), (vi) (ix), (x) (i), (ii), (v) (vii), (viii)
B (iii), (vi), (x) (iv), (ix) (ii), (v), (viii) (i), (vii)
C (iv), (vii) (ix), (x) (iii), (vi) (ii), (v) (i), (viii)
D (iv), (vi), (x) (iii), (ix) (ii), (v), (vii) (i), (viii)


Ans 1:

Class : Class 7
This answer is wrong. Correct answer is A.

Ans 2:

Class : Class 6
athletes foot is a protozoan disease

Ans 3:

Class : Class 7
This is for question 1.

Ans 4:

Class : Class 9
Answer is 1

Ans 5:

Class : Class 5
correct answer is A

Ans 6:

Class : Class 8
correct answer is B

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
B

Ans 2:

Class : Class 8
Option a is correct .

Ans 3:

Class : Class 5
OPTION A IS CORRECT

Ans 4:

Class : Class 7
A

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 6

Select the option that correctly fills up the blanks in any two of the given statements.
P. In plants with tap root, the leaves have mostly __(i)__ venation and in plants with fibrous roots, the leaves have mostly __(ii)__ venation.
Q. Some plants have small openings called __(i)__ on the lower surface of the leaves, which help in __(ii)__.
R. Leaves are modified into __(i)__ that help the plant to attach itself to a support, while __(ii)__ are modified leaves, that reduce the amount of water lost from the plant.

AP (i) parallel, (ii) reticulate; Q (i) stomata, (ii) gaseous exchange
BQ (i) stomata, (ii) water absorption; R (i) tendrils, (ii) spines
CP (i) reticulate, (ii) parallel; Q (i) stomata, (ii) gaseous exchange
DP (i) parallel, (ii) reticulate; R (i) tendrils, (ii) spines


Ans 1:

Class : Class 8
TINK ITS C

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
D) is the ans.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4
Ans c

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
Statement 1 : Concave mirrors are used in torches and car headlights.
Statement 2 : Concave mirrors converge the light of the bulbs of torches and car headlights to form a beam of light.

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


Ans 1:

Class : Class 4

Ans 2:

Class : Class 8
concave mirrors converge light

Ans 3:

Class : Class 10
C

Ans 4:

Class : Class 8
i dont agree

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