User Forum

Choose the correct water image of the given words/numbers from amongst the options.

T3P2Y5

(A)

(B)

(C)

Consider the following list of materials to answer the question which follows.
I. Liquid oxygen
II. Soap solution
III. Brass
IV. Silver
V. Petrol
Which one of the following is correct?

AI, III and IV are elements.
BII, III and V are mixtures.
CIII and IV are elements.
DIII and V are compounds.

Air at pressure P₁ is injected to a manometer with a tube size of 2 cm diameter and air at pressure P₂ is injected to another manometer with a tube size of 4 cm diameter as shown in the figure.

Which of the following options about P₁ and P₂ is true?

A P₁ = P₂
B 2P₁ = P₂
C 4P₁ = P₂
D P₁ = 4P₂

Refer to the given flow chart and select the correct option regarding P, Q, R, S and T.

Study the given figure and select the incorrect option for P, Q, R and S.


AP is usually colourful and helps to attract the insects.
BR is usually green in colour and protects the inner parts of flower when it is in bud stage.
CQ is male reproductive part of the plant.
DS receives pollen grains from anther.

Amit uprooted a plant and found fleshy tubers in roots as shown in the figure. What could he infer about the plant by observing the roots?


A The root system do not penetrate deep in the soil. Both main roots and their branches are thin and thread-like.
B The plant has leaves with reticulate venation only.
C The root system follows acropetal orientation i.e., the youngest towards growing point and oldest towards the base of the main root.
D Both b and c.

The given figure shows a zinc bar placed near a strong magnet. Four compasses P, Q, R and S are arranged near by the magnet and the zinc bar as shown. Which one of the compasses does point to the wrong direction?


AP
BQ
CR
DS

Study the following information carefully and answer the question given below:
A, B, C, D, E, F, G and H are sitting around a circle facing at the centre. C is third to the left of A and second to the right of E. B is second to the right of C. D is second to the right of F who is second to the right of A. G is not an immediate neighbour of C.
Who is third to the right of H?

A E
B F
C D
D G

Study the food chain given below.
R → W → X → Y → Z
If organism Y is removed from the food chain above, which one of the following graphs shows the changes in the other populations?

A
B
C
D

Read the given passage and answer the question that follow.
The polar regions are covered with snow. There may also be snowfall in mountain regions during the winter. The trees growing on mountains are cone-shaped, with sloping branches. Many of them, such as pine, have sharp needle-like leaves. Animals living on mountains have thick skin or fur to protect themselves from cold, e.g., yaks and snow leopards.
What other adaptation(s) of animals is/are observed in the colder areas?

ABirds and mammals of colder areas are larger in size as compared to their equivalents in warmer areas.
BAnimals of colder areas have shorter extremities (e.g., tail, ears, feet) as compared to animals in warmer areas.
CBirds of colder areas have broader wings.
DBoth a and b.