Explanation:

• Theri is a small desert situated in the state of Tamil Nadu. It consists of red sand dunes. The red dunes are called theri in Tamil. They consist of sediments dating back to the Quaternary Period (began 2.6 million years ago) and are made of marine deposits.
• They have very low water and nutrient retention capacity. The dunes are susceptible to aerodynamic lift. This is the push that lets something move up. It is the force that is the opposite of weight.

Hence only statement 1st is correct.