Multiple choice

Which two impurities are separated from sand at construction sites?

  1. Stones and husk

  2. Bran and stalk

  3. Pebbles and stones

  4. Husk and pebbles

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

At construction site, small and big stones are separated from the sand by a method called sieving. Sand passes through the sieve and pebbles and stones being larger get separated.