Simplify the following text for a Grade 10 native English-speaking person.
Original: The tehsils of Layyah and Karor Lal Esan are developed agriculturally compared to other tehsils of the distract but still have are large tracks of sand dunes and uncultivated land .
Simplified: The tehsil of Layyah and Karor Lal Esan are better developed agriculturally but they have also large areas of sand dunes and uncultivated land .