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Ramya planted plant X in her garden. She tied the stem of this plant to a pole placed besides it in the soil to help it grow. Which of the following could be plant X?

A
B
C
D

Which of the following statements suggest that a batteryoperated car is NOT a living thing?
1. It takes up space.
2. It is hard and shiny.
3. It does not reproduce.
4. It does not breathe.

A1 and 2 only
B1 and 3 only
C2 and 4 only
D3 and 4 only

There are _______ equal groups of 4 cats.



A6
B7
C8
D24

Which of the following statements is incorrect?

A We should allow sunlight to our house because it helps to kill germs and decrease humidity.
B We should put wire mesh on the windows to stop the entry of dust and light.
C We should welcome our guests in the living room of our house.
D We should use bricks, cement, etc. to make our permanent houses as they make a house strong.

Dharini took two healthy green plants of equal size, put them in two boxes, L and M, made of different materials and placed them under the Sun, as shown in the figures. She watered both the plants daily, but the plant in set-up M died, while the plant in set-up L grew well. Which of the following best describes this?


APlant in the set-up M could not get air.
BBox in the set-up M is made up of clear glass.
CPlant in the set-up M could not get sunlight.
DBox in the set-up L is made up of wood.

X is the farthest planet from the Sun in our Solar System. ‘X’ is ___________.

A Neptune
B Uranus
C Jupiter
D Saturn

The picture shows a xylophone. A, B, C and D are the rods in it. Which of the following rods has high pitch of the sound and which has low frequency of vibrations?

As we go higher up on mountains, our ears pop because

A Air pressure around our ears increases
B The pressure exerted by the blood near ears increases
C Air pressure around our ears decreases
D None of these

Which of the following represents the correct increasing order of the densities of given substances?

A Cotton < Exhaust from chimneys > Honey < Iron < Air
B Air < Exhaust from chimneys < Cotton < Honey < Iron
C Cotton < Air < Exhaust from chimneys < Iron < Honey
D Air < Cotton < Exhaust from chimneys < Iron < Honey

Which of the following statements are correct?
(i) Cochineal insect is used to eliminate Opuntia.
(ii) Water logging decreases the amount of salts in the soil that increases soil fertility.
(iii) Fertilisers are not readily soluble in water, so they are absorbed by the plants slowly.
(iv) Rust of wheat is a fungal disease.
(v) The practice of growing two or more dissimilar crops in the same field one after the other is called mixed cropping.

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