Class 10 Biology MCQs – Practice Test 14 (Chapter 3)

Gaseous Exchange MCQ with Answers PDF Download – Test 14

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Gaseous Exchange MCQ – Practice Test 14 PDF Download

MCQ 66: The kind of bronchitis that causes no permanent damage to the lungs and lasts for two weeks is called:

acute bronchitis
chronic bronchitis
coastal bronchitis
intercostal bronchitis

MCQ 67: Lenticels are pores present in the layer of:

leaf
epidermis
cuticle
bark

MCQ 68: During inhalation, the ribs muscles contract and:

move down
shrink
expand
raise

MCQ 69: Pores in the layer of bark are called:

stomata
cuticle
lenticels
guttation

MCQ 70: The amount of nitrogen present in expired and inspired air is:

0.69
0.72
0.75
0.79

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