Question

1.The total lung capacity of human beings is :
A) 5800 ml.
B) 5400 ml.
C) 5900 ml.
D) 6000 ml.
2.Normally at rest we inhale or exhale approximately:
[ ]
A) 400 ml. of air B) 500 ml. of air C) 600 ml. of air D) 700 ml. of air
3.Which of the following scientist found that the air that we breathe out precipitate limewater?
A) Lavoisier
B) Priestley
C) Ingenhouz
D) Pelleitier [ ]
4.The factors that affect the ratio of photosynthesis and respiration in plants is/are : [ ]
A) temperature
B) humidity
C) light intensity D) all the above
5.Fixed air means :
A) Oxygen
B) Carbon dioxide C) Nitrogen
D) Argon
​

Answer 1

Answer:

1.    D)6000 ml

2.    

3.   A)Lavoisier

4.   D)All the above

5.  

Answer 2

Answer:

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