Science Class 3 Matter and Materials

Asked by ADWIT KUMAR · K8 SCHOOL

Which is the hardest rock ?

Answer as guest — Start Free Practice Test to earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+51 point = ₹1 discount on purchases, ask questions & climb the leaderboard!
Show answer and explanation

Answer: A. granite

Granite is an igneous rock made of hard minerals like quartz, so it is very hard. Sandstone, chalk and pumice are soft or crumbly in comparison.

Answering after opening this box earns no Practice Points.

people 21 answered check_circle 86% got it right
70%