When wind drops its load of sand, it can form a hill called

Correct Sand dune

Sand dunes are formed when waves transport the sand onto the beach, it is formed on the beach or in the desert. It grows as grains of sand accumulate and form sand dunes.

For the formation of a sand dune, it is necessary to have a large amount of loose sand with less or no vegetation, and a wind breeze is required which will blow the sand. Finally,  an obstacle is needed that will stop the momentum of loose sand and help to settle down and form a sand dune.  

answer; i believe the correct answer is (a)0

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.