1. Filtering: Sand can be used to filter out impurities or particles in liquids, such as water. By passing the liquid through a layer of sand, the particles get trapped and the liquid is left clean.
2. Abrasive: Sand is also used as an abrasive material in various industries, such as metalworking and construction. It can be used to sand down rough surfaces or remove old paint or coatings.
3. Landscaping: Sand is often used in landscaping projects to create a stable base for paving stones, bricks, or other materials. It can also be used to fill in gaps or provide drainage in garden beds.
4. Playgrounds: Sand is a common material used in playgrounds, particularly in sandboxes. It provides a soft landing surface for children and can be shaped and molded for imaginative play.
5. Construction: Sand is a key ingredient in concrete and mortar mixes, providing bulk and stability to these building materials. It is also used as a bedding material for laying pipes or utility lines.
explain why you need to use each of the methods
sand
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