Coarse sand grains deposited across the landscape in an amorphous sheet is known as a coarse sand grains deposited across the landscape in an amorphous sheet is known as a ventifact sandplain sand dune gibber plain wadi

The answer is sandplain.  Coarse sand grains deposited across the landscape in an amorphous sheet is known as a sandplain. It is an washout plain usually  composed chiefly of sand deposited by water from a melted glacier. It is an area where the soil is sand deposited from elsewhere by processes such as wind or ocean.

Answer islamic scholars made advancements in technology, literature, philosophy, mathematics, astronomy, and the arts during this time period;