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.

Ice melting no wait thats global warming

i didn’t understand your question but archipelagos are groups of island hope this