NSO Level 2 Class 9 Science Paper 2015 – 16 Questions and Answers Part 4

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Question33) Identify the different types of white blood cells X, Y and Z shown in the given figure and select the correct option regarding these.

Types of White Blood Cells

Question34) Humans affect the environment in the following ways:

(i) Clearing of forest

(ii) Harvesting of marine algae

(iii) Reforestation

(iv) Combustion of fuels

(v) Overuse of pesticides.

Which human activities lead to an increase in the level of carbon dioxide in the earth՚s atmosphere?

A. (i) , (ii) and (iii) only

B. (i) , (ii) and (iv) only

C. (ii) , (iv) and (v) only

D. All of these

Question35) The given diagram shows a tropical forest before and after the clearance, for agricultural use. Which of the following could not be the outcome of this clearance.

A Tropical Forest

A. Self-sustaining capacity of the ecosystem will be reduced.

B. Species diversity at the place will decrease.

C. Soil will turn saline because minerals present in soil will be used less.

D. Both A and B.

Question36) Read the given statements and select the correct option.

Statement-1: Malaria and dengue are communicable (infectious) but non-contagious diseases.

Statement-2: Malaria and dengue are caused by pathogens which are transmitted from a healthy person to an infected person only through vectors and not by direct contact.

A. Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

B. Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement1.

C. Statement 1 is true but statement 2 is false.

D. Statement 1 is false but statement 2 is true.

Question37) Study the given flow chart and select the option which correctly identifies any of the animals, W, X, and Z.

The Animals, W, X, and Z

A. W is Planaria and X is Ascaris.

B. X is Ascaris and Y is Nereis.

C. W is Sycon and Z is Fasciola.

D. Y is Periplaneta and Z is Union.

Question38) Read the following statements associated with the given cell organelles X and Y.

Cell Organelles X and Y

(i) X works as a seat of protein-synthesis.

(ii) Y helps in exchange of materials between the cytoplasm and the nucleus.

(iii) X helps in storage of secretory products.

(iv) Y helps in development of acrosome of sperm.

(v) Both X and Y help in membrane biogenesis.

(vi) X usually forms a continuous transport channel with nuclear membrane.

Which of the above statements are correct?

A. (i) , (ii) , (iii) and (v) only

B. (i) , (iv) and (vi) only

C. (ii) , (iii) and (v) only

D. (iii) , (iv) , (v) and (vi) only

Question39) Select the mismatched pair out of the following.

A. Aspergillus – Absorbs soluble food material from the surrounding organic matter

B. Euglena – Cellulosic cell wall

C. Marchantia – Main plant body is gametophyte

D. Marisela – Body is differentiated into root, stem and leaves

Question40) Which of the following statements is not true regarding the plant meristems (P, Q and R) shown in the given figure?

Plant Meristems

A. If meristem Pies removed, plant will become short and bushy in appearance.

B. Meristem Q is responsible for internode elongation.

C. If meristem R is removed, transportation of water and minerals will not take place.

D. Meristem P is present at the growing tips of roots.

Question41) Refer to the given table and select the correct option regarding it.

Refer to the Given Table and Select the Correct Option Regardingit
Milch breeds of cattle
Indigenous pure breedExotic pure breedHybrid breed
(i)(ii)(iii)

A. (i) -Murrah, (ii) -Gir

B. (ii) -Jersey, (iii) -Surti

C. (i) -Sahiwal, (iii) -Frieswal

D. (i) -Karan Fries, (ii) -Ayrshire

Question42) Match column I with column II and select the correct option.

Match Column I with Column II and Select the Correct Option
Column IColumn II
(a) Feeding in the surface zone(i) Catla, Silver carp
(b) Feeding in the middle zone(ii) Rohu, Grass carp
(c) Feeding in the bottom zone(iii) Mrigal, Common carp

A. (a) - (i) , (b) - (ii) , (c) - (iii)

B. (a) - (ii) , (b) - (iii) , (c) - (i)

C. (a) - (iii) , (b) - (i) , (c) - (ii)

D. (a) - (iii) , (b) - (ii) , (c) - (i)

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