Question

please it is urgent friends ​

Answer 1

Answer:

to distinguish small particles from big particle

used in floor mills and building sites

Answer 2

Answer:

Here is your answer mate

Explanation:

Sieving is a process by which fine particles are separated from from bigger particles by using a sieve. It is used in flour mill and construction sites. In flour mill, impurities like husks and stones are removed from wheat. Pebbles and stones are removed from sand by sieving.

Hope it helps :)