Select the word-pair that best represents a similar relationship to the one expressed in the pair of words given below.
(The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word)
Lava: Volcano

Correct option is C

Lava : Volcano - Lava is the molten rock that erupts from a volcano. So, the relationship is that lava comes from or is produced by a volcano.
From the given options - 
A) Avalanche: Ice - An avalanche is a mass of snow, ice, and rocks falling rapidly down a mountainside, but ice is not specifically produced by an avalanche. This doesn't match the relationship where one word is produced by the other.
B) Ice: Glass - Ice is a solid form of water, and glass is not produced directly from ice. This doesn't match the relationship of the first word being produced by the second.
C) Steam: Geyser - Steam can come from a geyser, as a geyser erupts with hot steam and water. This is a similar relationship because steam is a product of a geyser, just as lava is a product of a volcano.
D) Cascade: Precipice - A cascade refers to a waterfall or a series of waterfalls, while a precipice is a steep cliff or drop. This isn't quite the same relationship because the cascade is not directly produced by the precipice.
The word pair that best represents a similar relationship is (C) Steam: Geyser.