Question

Match the following terms in Column - I with those in Column - II correctly.

Column I	Column II
(a) Aquatic animals	(1) Sailboat
(b) Mountaineers	(2) Soot and dust
(c) Factories	(3) Oxygen cylinders
(d) Wind	(4) Dissolved oxygen

• 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 uses dissolved oxygen for respiration.
(ii) Mountaineers carry oxygen cylinders to avoid breathlessness.
(iii) Soot and dust are ejected out from the factories through chimneys.
(iv) A sailboat uses the wind power to propel it in the forward direction.