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A person spreads some iron filings uniformly on a sheet of paper. Then, she places the given magnet on the sheet. Which one of the following bar graphs correctly represents the number of iron filings stick to various parts of the magnet?

A
B
C
D

The bumpers and door handles of motor cars, taps etc. are coated with silvery layer of chromium because
(i) It does not easily get corroded.
(ii) It forms a hard layer which does not easily get scratched.
(iii) It tarnishes quickly.
(iv) It is quite cheap.
Which of the following options is correctly identifies true (T) or false (F)?

Which of the following statements are incorrect regarding a test tube baby?
(i) It is developed wholly in a test tube.
(ii) It is developed through tissue culture method.
(iii) The ovum is fertilised externally and thereafter implanted in the uterus.
(iv) It develops from an unfertilised egg.

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

Refer to the given flow chart and identify P-S.

Now, select the incorrect statement regarding them.

AIn mode P, gametes could be formed and fertilisation takes place.
BPlants like Oxalis and Vallisneria can reproduce by method Q.
CR can be a method of reproduction where scion and stock are involved.
DS can be a method of reproduction where the plant gives rise to a spore bearing structure called sori.

Study the given word grid and answer the following questions :

(A) How many names of animals who carry heavy loads are hidden in the word grid?
(B) How many names of animal products are hidden in the word grid?

A a - Two, b - Three
B a - Two, b - Two
C a - Four, b - Two
D a - Four, b - One

Different animals have been placed into two separate groups X and Y. Identify the basis of placing them separately.


AGroup X members are active during the day and group Y members are active at night.
BGroup X members are animal eating and group Y members are plant eating.
CGroup X members live in open area and group Y members always live in cages.
DGroup X members are pet animals while group Y members are wild animals.

Why do some animals hibernate in the winter?

A To find food for their young ones
B To cope up with environmental changes
C To attract a mate
D To avoid predators

Refer to the given flow chart and select the correct statement regarding W-Z.


AW can be tetanus or mumps while X can be polio or common cold.
BZ can be measles or pneumonia while Y can be dengue or malaria.
CX can be common cold or chickenpox while Z can be amoebic dysentery or ringworm.
DW can be cholera or citrus canker while Y can be malaria or chikungunya.

Pooja places a black plastic tape over the leaf as Leaf covered with tape shown in the given figure. She expected that the plant would die after a few days but it did not because _____.


A Food prepared by the roots is carried to the leaves through the stem
B Water reaches the leaves from the roots through the stem
C Food can be carried from the other leaves to the leaf covered with tape through the root
D Both (B) and (C)