NSO Level 2 Class 3 2012 - 13 Previous Year Paper Questions Part 3
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20. Which of these actions requires both push and pull forces?
A.
B.
C.
D.
22. Study the given food web and select the correct number of food chains that consist of only three organisms.
A. 4
B. 5
C. 7
D. 8
Food Chain, Food Web and Ecological Pyramids - 3 Key Concepts in 1 Lecture
23. Refer the given diagram of the human digestive system and answer the following question.
Which of the labelled parts
I. Contains digestive juices?
II. Contains semi-solid wastes called faeces?
(I) (II)
A. E H
B. F G
C. F H
D. I G
NCERT Class 7 Science Chapter 2: Nutrition in Animals (NSO/NSTSE/Olympiad) | English
24. A man standing 150 m away a cliff fires a gun. A second man who is standing 300 m further away from first man hears the gun 1 second after he sees the flash. The second man will hear the echo from the cliff ________.
A. 1 second after seeing the flash
B. 2 seconds after hearing the gun
C. 2 seconds after seeing the flash
D. 4 seconds after hearing the gun
25. A plastic bin has a capacity of of air is pumped into it. What will be the volume of air inside the plastic bin?
A.
B.
C.
D.