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Subject :NSO    Class : Class 7

Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.

(i) In cockroaches, air enters the body through spiracles.
(ii) During heavy exercise, we get cramps in the legs due to accumulation of carbon dioxide.
(iii) Normal range of breathing rate per minute in an average adult person at rest is 12-18.
(iv) During exhalation, the ribs move upwards.

(i) (ii) (iii) (iv)
A F T F T
B T T F T
C T F T F
D T T T F


Ans 1:

Class : Class 7
IT SHOULD BE B!!!

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7
THE SOLUTION DOESN'T MAKE SENSE

Ans 4:

Class : Class 7
It should be B

Ans 5:

Class : Class 7
uh ya it should be B the last statement is true not false

Ans 6:

Class : Class 7
it should be B . The solution is also wrong

Ans 7:

Class : Class 7
Its BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

Ans 8:

Class : Class 7
should be b

Ans 9:

Class : Class 8
It is 15-18, not 12-18.

Ans 10:

Class : Class 8

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