NSO Level 2 Class – 4 2013 Part 5 with Solutions and Explanations at Doorsteptutor. Com

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29. Which of the following graphs shows the relationship between the number of deaths of organisms in a canal and the amount of refuse in it?

A.

Graph

B.

Graph

C.

Graph

D.

Graph

30. Which of the following can you deduce from the given figure?

A. Air moves things.

B. Air has mass.

C. Air has no fixed volume.

D. Air occupies space.

Needle

31. Refer to the food diagram, if all the F organisms are killed, which of the following would happen.

Diagram

A. E would have to find new source of food

B. Z would have more competitors for food.

C. E would decrease in number

D. Z would eat more of E and G.

32. Rohit carried out an experiment to test the hardness of objects 1,2 and 3. The results of the experiment are shown here.

Results vs. Scratch Test
Scratch TestResults
(i)
Experiment
Experiment
(ii)
Experiment
Experiment
(iii)
Experiment
Experiment
(iv)
Experiment
Experiment

Which of the following shows the correct order of hardness of 1,2 and 3 starting from the hardest?

A. 1,2, 3

B. 1,3, 2

C. 2,3, 1

D. 3,1, 2

Q 33. Some animals are grouped according to their similarities in the given classification chart.

Which option gives the correct information for characters P, Q, R and S respectively?

Chart

P Q R S

A.

B.

C

D.

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