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Read the given passage carefully.
Houseflies go through (A) stages in their life cycle. The housefly lays hundreds of eggs at a time. Each egg hatches to produce a young one called a (B). The larva of a housefly is called (C). After some days, the larva becomes barrel-shaped. It is now called a (D). The pupa is covered by a (E). The cocoon breaks open in a week and a young housefly comes out.
Select the option which correctly fills any three blanks.

A a - four, c - nymph, d - cocoon
B b - larva, d - pupa, e - cocoon
C a - three, b - larva, d - pupa
D c - maggot, d - pupa, e - nymph

Abhishek set up different kinds of conditions on each of the four corners of a cardboard. He placed some woodlice in the centre of the cardboard and waited for twenty minutes. The result is shown in the diagram below.

Select the correct option regarding this.

A The aim of this experiment is to find out the conditions that woodlice preferred to live in.
B Woodlice like to live in dark and damp places.
C Woodlice like bright and dry places.
D Both A and B.

Study the given classification chart of animals carefully and identify the animals (a-d).

The given figure shows a setup at the start of an experiment (X) and after a few days (Y). The change observed in setup Y is due to


A Upward movement of food getting blocked
B Downward movement of food getting blocked
C Upward movement of water getting blocked
D Downward movement of water getting blocked.

Which of these would not be an effect of excessive rainfall?

A Destruction of crops leading to shortage of food.
B Water-borne diseases like jaundice and cholera.
C Drought resulting in famine.
D Communication and transportation gets affected.

Which property of air makes drinking through straw possible?

A Air has mass.
B Air occupies space.
C Air exerts pressure.
D Air can be compressed.

A wire of resistance 4 Ω is used to wind a coil of radius 7 cm. The wire has a diameter of 1.4 mm and the specific resistance of its material is 2 × 10^-7 Ω m. The number of turns in the coil is

A 50
B 40
C 60
D 70

X and Y are two 12 years old girls having physically active and sedentary life styles respectively. Considering their lifestyles, select a suitable lunch meal for each of them from the given boxes.


AX-(iii), Y-(i)
BX-(ii), Y-(i)
CX-(ii), Y-(iv)
DX-(i), Y-(iv)

Vedant wants to heat object Q but without putting it on the stove directly. He set-up an experiment as shown here. The object P should be made of which of the following materials so that object Q can be heated?


AWood
BRubber
CIron
DPlastic