Question

what two elements does sand contain​

Answer 1

The most common component of sand is silicon dioxide in the form of quartz. The Earth's landmasses are made up of rocks and minerals, including quartz, feldspar and mica. Weathering processes — such as wind, rain and freezing/thawing cycles — break down these rocks and minerals into smaller grains

Answer 2

The major content of sand is silicon dioxide in the form of quartz and oxygen.