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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Which of the following statements are incorrect?
(i) Cellular respiration is a physical process in which food molecules are broken down into carbon dioxide and water.
(ii) Anaerobic respiration involves breakdown of glucose into alcohol and carbon dioxide.
(iii) Breathing rate varies according to oxygen requirement of the body.
(iv) On land, frogs breathe through lungs and in water by gills.
(v) Respiration in plants occurs through stomata and lenticels.

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


i doubt on it . how could cellular respiration could be a physical one.

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
C

Ans 2:

Class : Class 5
Correct answer - D as Uranus has methane in its atmosphere and Mars has iron dust in the soil

Ans 3:

Class : Class 5
Correct answer - D as Uranus has methane in its atmosphere and Mars has iron dust in the soil

Ans 4:

Class : Class 5
D

Ans 5:

Class : Class 5
Correct answer - D as Uranus has methane in its atmosphere and Mars has iron dust in the soil

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Subject :NSO    Class : Class 5

Two persons X and Y went to see a doctor for their respective diseases. The given box shows what they communicated to the doctor about their illness.
Person X : “I have swollen gums that bleed when I brush my teeth or eat anything. My joints are also swollen and keep paining.”
Person Y : “I am unable to see properly in dim light.”
What can be concluded about these persons?

APerson X does not take citrus fruits in his diet.
BPerson Y is suffering from iron deficiency. So he should take lots of green leafy vegetables in his diet.
CPerson X is suffering from scurvy whereas person Y is suffering from rickets.
DBoth the persons are diseased due to deficiency of vitamins but person X is having vitamin A deficiency and person Y is having vitamin C deficiency.


nice question

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
B

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