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Identify the incorrect matches and select the correct option.
(i) Vitamin B₁ – Thiamine
(ii) Vitamin B₃ – Niacin
(iii) Vitamin B₇ – Pantothenic acid
(iv) Vitamin B₁₂ – Biotin

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

An oil spill covered a large area of water in an ocean. The marine life in that area was badly affected. A lot of marine animals were found dead and floating on the surface of the water. This is because ____________.
(i) They drank the water that was contaminated by the oil
(ii) The fish swallowed the oil and were poisoned
(iii) Eutrophication caused as a result of oil spill leads to depletion of oxygen in water body.

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

Meenakshi walks 1 km towards East and then she turns to South and walks 5 km. Again she turns to East and walks 2 km, after this she turns to North and walks 9 km. Now, how far is she from her starting point?

A3 km
B4 km
C5 km
D7 km

Mansi did a study on two fabrics, P and Q. At the end of her study she prepared following table about her observations. What can be the name of these two fabrics?


AFabric P-Rayon Fabric Q-Lycra
BFabric P-Cotton Fabric Q-Linen
CFabric P-Polyester Fabric Q-Silk
DFabric P-Silk Fabric Q-Cotton

Find the number of squares formed in the given figure.


A30
B34
C32
D35

Select a figure from the options which will continue the same series as established by the Problem Figures.


A
B
C
D

Wool is obtained from _____.

ASheep
BRabbit
CGoat
DAll of these

Study the given Venn diagram and select the correct option.


AX can be an animal that has wings and Z can be an animal that breathes through spiracles
BY can be an animal having outer body covering of scales and X can be an animal that has outer body covering of fur
CW can be an animal that lays eggs and Y can be an animal that has hair on its body
DY can be an animal whose young one breathes through gills and there is no animal as Z

If '+' denotes '×', '–' denotes '÷', '×' denotes '–' and '÷' denotes '+', then find the value of 5 + 14 – 2 × 3.

A 31
B 32
C 33
D 34

Read the given paragraph where few words have been italicised.
Troposphere is the first layer of atmosphere closest to the Earth. Mesosphere is an important layer as it contains ozone gas that absorbs harmful ultraviolet rays of the Sun and protects us from its harmful effects. Stratosphere is the layer where most meteorites burn up before reaching the Earth surface. Thermosphere is the upper most layer of Earth's atmosphere.
Select the incorrect statement regarding them.

A Thermosphere should not be changed as it is correctly mentioned.
B Mesosphere and stratosphere should be interchanged.
C Thermosphere should be changed to exosphere.
D Thermosphere and troposphere should be interchanged.