What is the difference between dust and sand?

Answer 1

The differences between sand and dust are huge as they have nothing in common whatsoever.Sand is made up of rock that has eroded over millions of years, and shell. Dust on the other hand is made up of not so nice things that are floating in the air around us such as dead skin ,house-dust-mites,the droppings from house-dust-mites,pollen from flowers and trees,dirt from the roads,fluff from our clothes sheets bedding etc, pet hair,ash, and pollutants from cigarette smoke and exhausts of motor vehicles,and small bits of debris which is carried in on the soles of our shoes, and last but not least the main difference between dust and sand is that sand is an outdoor product whereas dust is mainly an indoor product and mainly made of waste products.