Answer the following question given this paragraph: When the wind deposits sand, it forms small hills. These hills are called sand dunes ( Figure below ). For sand dunes to form, there must be plenty of sand and wind. Sand dunes are found mainly in deserts and on beaches. Q: When the wind deposits sand, it forms small hills, what are these hills called? Choices: - sand tunnels - snow banks - mud puddles - sand dunes A:
A:
sand dunes