Start learning →

On the hardness scale of 1 to 10, which mineral is number 1?

AJade
BTalc
CMica
DOpal
Answer & Solution
Correct answer: B. Talc
1. Ten minerals mark the scale. 2. Talc is the softest at 1. 3. Gypsum is 2 and calcite 3. _Source: syllabus Fundamentals of Physical Geography, Chapter 5, Minerals and Rocks._
Practise this question with Quill — UPSC CSE →

Keep practising Physical Geography

Browse all Physical Geography questions for UPSC CSE, or explore more Geography topics.

Start a Physical Geography lesson →
Related questions
Water resource bingoType the numberSort cause, effect and fixUsable or unusable waterSlice the water wordsRun the water numbersPop the water cycle stepsCatch the water table drainers