These two factors are important in the development of dunes next to beaches:

Question

Quizplus · Accepted Answer

Dunes next to beaches require mostly unidirectional winds, which blow the sand onto the beach and allow it to accumulate into dunes. Additionally, there must be sufficient sand supply for the dunes to grow. Vegetation and a humid climate are not necessary for the development of dunes next to beaches, so choices B and C can be eliminated. The answer is therefore choice A.

These Two Factors Are Important in the Development of Dunes