Question

Match the following terms in Column - I with those in Column - II correctly. $\begin{array}{cccc}& \text{Column-I}& & \text{Column-II}\\ \text{a}.& \text{Aquatic animals}& 1.& \text{Sail boat}\\ \text{b}.& \text{Mountaineers}& 2.& \text{Soot and dust}\\ \text{c}.& \text{Factories}& 3.& \text{Oxygen cylinders}\\ \text{d}.& \text{Wind}& 4.& \text{Dissolved oxygen}\end{array}$

• A. a-1, b-2, c-3, d-4
• B. a-2, b-1, c-4, d-3
• C. a-3, b-4, c-1, d-2
• D. a-4, b-3, c-2, d-1

Answer 1

The correct option is D

a-4, b-3, c-2, d-1

The correct combination is
a-4, b-3, c-2, d-1
(i) Aquatic animals inhale the dissolved oxygen in the water.
(ii) Mountaineers use Oxygen cylinders because the Oxygen content in the air is less at higher altitudes.
(iii) Factories emit soot and dust
(iv) Wind aids the boats to sail.