Select the option that is related to the third word in the same way as the second word is related to the first word.
Air : Atmosphere :: Water : ?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Hydrosphere
The atmosphere is the layer of air around the Earth, so the pair links a substance with the part of the Earth made of it. All the water on the Earth (oceans, rivers, lakes, ice and water vapour) makes up the hydrosphere.
Why the other options are incorrect
Option (2) Perisphere — Incorrect. Perisphere is not one of the spheres of the Earth.
Option (3) Stratosphere — Incorrect. The stratosphere is a layer of the atmosphere, above the troposphere, so it is made of air.
Option (4) Ionosphere — Incorrect. The ionosphere is the upper part of the atmosphere with charged particles, again made of air.