Question

it requires more than one separation technique to separate a mixture of salt, sand and grain​

Answer 1

Answer:

HOPE THIS HELPS.

Explanation:

Separation of sand and salt requires more than one method. Add water to the mixture and separate sand by decantation. Heat the decanted liquid in a kettle. Let the steam from evaporation come in contact with a plate with ice on it. The vapor gets converted to water droplets by condensation. Salt is left behind in the kettle.

THANK YOU

MARK THE ANSWER AS BRAINLIEST.

Answer 2

Answer:

Grain needs only filtration, my friend but salt and sand are polar substance (highly soluble in water)

hope it helps u!