Science Quiz Based on NCERT



Q1: Breathing is a ________ process while respiration is a _______ process.
A.Physical, Chemical
B.Chemical, Physical
C.Physical, Physical
D.Chemical, Chemical

1: A

Q2: Organisms which respire in absence of air are called _________. 
A.Microbes
B.Anaerobes
C.Aerobes
D.None of these

2: B

Q3: Plants breathe through tiny pores in the leaves called ________.
A.Leaf blade
B.Trachea
C.Pores
D.Stomata

3: D

Q4: In earthworm, the exchange of gases occurs through ________.
A.Lungs
B.Gills
C.Moist skin
D.Tracheae

4: C

Q5: During Inspiration or Inhalation, inside lungs
A.Volume decreases pressure increases
B.Volume increases pressure decreases
C.Volume decreases pressure decreases
D.Volume increases pressure increases

5: B

Q6: Insects have several openings on lateral sides of their bodies which lead to air tubes. These openings are called 
A.Tracheae
B.Spiracles
C.Lungs
D.Gills

6: B

Q7: When we breathe out, exhaled air turns lime water into _______ due to presence of ________.
A.Orange, oxygen
B.Milky, oxygen
C.Milky, carbon dioxide
D.Milky, carbon monoxide

7: C

Q8: Which of the following animal can breathe through skin as well through lungs?
A.Fish
B.Mammal
C.Cockroach
D.Frog

8: D

Q9: Tiny air sacs of lungs are called ______.
A.Alveoli
B.Trachea
C.Bronchi
D.Larynx

9: A

Q10: Find the odd one out.
A.Nasal Cavity
B.Nostrils
C.Pharynx
D.Trachea

10: C



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