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Study the given relationships carefully and select the option which correctly identifies P-S.
(i) Pistia : Hydrilla : : Wolffia : P
(ii) Pigeon : Ostrich : : Sparrow : Q
(iii) Chickenpox : Tetanus : : Mumps : R
(iv) Wildebeest : Snake : : Deer : S

Which of the following statements is/are correct?
(i) Longer line in the symbol for a cell represents its negative terminal.
(ii) The combination of two or more batteries is called a cell.
(iii) Fuse wire is made up of alloys which has high melting point.
(iv) Electromagnet loses its magnetism when the current flowing through it is switched off.

A(iv) only
B(ii) and (iii) only
C(i), (ii) and (iv) only
D(i), (ii), (iii) and (iv)

Rita has gone to Antarctica on a science trip. Select the option which on unscrambling gives name of a clothing that she can wear over there.

A TORHSS
B KRSIT
C ERSEAWT
D TOACAIRN

Find the value of


A15/127
B18/127
C15/129
D17/127

Which flower is third to the left of fourth flower from the right end in the given arrangement?



A
B
C
D

Rachit added a teaspoonful of vinegar and a pinch of baking soda in a test tube. He heard a hissing sound and saw bubbles of a gas coming out. He passed this gas through lime water. Which of the following is incorrect about his experiment?

A Lime water turns milky.
B The gas evolved was carbon dioxide.
C Sodium hydrogencarbonate is formed which makes lime water milky.
D Both b and c

X is easily broken down by decomposers and Y cannot be broken down by decomposers. Identify X and Y.

A X - Ceramic, Y - Plastic
B X - Wood, Y - Clothes
C X - Paper, Y - Metal
D X - Vegetables, Y - Wood

The following diagrams show jawbones belonging to four animals 1, 2, 3, and 4.

Which two animals are likely to have a similar diet?

A Animals 1 and 3
B Animals 1 and 4
C Animals 3 and 4
D Animals 2 and 3

Deep inside the Earth there is hot molten rock called 'P'. This comes up and collects in a chamber. When 'P' erupts through the Earth's surface, it is called 'Q'. On cooling, it becomes 'R'. The hollow top of the volcano that is shaped like a bowl, is called a 'S'.
Which of the following is incorrect regarding the above passage?

A 'Q' is magma and 'P' is lava. When magma is below the Earth's surface it is called lava.
B 'R' are igneous rocks. The first rocks to form on the Earth were igneous rocks.
C 'S' is a vent, an opening or a crack in the crust of the Earth.
D Both A and C.

The above activity can be performed to demonstrate the function of which of these joints?

A Pivot joint
B Ball and socket joint
C Hinge joint
D Gliding joint