Vocabulary—Antonyms MCQ: Determine the word most nearly opposite in meaning to ‘‘MOUNTAIN’’ by contrasting a high elevation or peak with a landform that is its natural opposite.

Given data

• Target word: mountain — a large natural elevation.
• Options: Plain, Plateau, Precipice, Valley

Concept/Approach
The opposite landform should suggest low elevation set between higher ground, directly countering the idea of a high rise.

Option analysis
Valley: low area between hills/mountains; natural opposite of a mountain. ✅Plain: flat expanse, not the direct opposite; it is level, not low-between-high. ❌Plateau: elevated flat area; not opposite. ❌Precipice: very steep cliff; a feature of mountains, not their opposite. ❌

Common pitfalls
Picking plain because it is flat; the question seeks a complementary contrast, and valley is conceptually opposite to mountain.

Final Answer
Valley