The Rayalaseema region of Andhra Pradesh is known for its:

Dense forests
Coastal plains
Semi-arid climate
Fertile river valleys

The correct answer is: c) Semi-arid climate.

The Rayalaseema region of Andhra Pradesh is a semi-arid region with a hot and dry climate. The average annual rainfall is about 600 mm, and the temperature ranges from 20°C to 40°C. The region is characterized by its rocky terrain, dry forests, and scrubland.

The other options are incorrect because:

  • Option (a), dense forests, is not a characteristic of the Rayalaseema region. The region is mostly covered by dry forests and scrubland.
  • Option (b), coastal plains, is not a characteristic of the Rayalaseema region. The region is located in the interior of Andhra Pradesh, far from the coast.
  • Option (d), fertile river valleys, is not a characteristic of the Rayalaseema region. The region is mostly dry and arid, with few rivers.