The Kambalakonda Wildlife Sanctuary near Visakhapatnam is known for its:

The correct answer is: a) Tropical dry deciduous forests

Kambalakonda Wildlife Sanctuary is a protected area in Andhra Pradesh, India. It is located in the Eastern Ghats, about 20 kilometers from Visakhapatnam. The sanctuary is known for its tropical dry deciduous forests, which are home to a variety of wildlife, including elephants, tigers, leopards, and deer.

The sanctuary is also home to a number of endangered species, including the Indian pangolin, the Nilgiri tahr, and the red sand boa. The sanctuary is a popular tourist destination, and offers a variety of activities, including trekking, camping, and bird watching.

Here is a brief description of each option:

• Tropical dry deciduous forests: These forests are found in tropical and subtropical regions. They are characterized by a dry season that lasts for several months, and a wet season that lasts for a few months. The trees in these forests shed their leaves during the dry season.
• Mangrove ecosystems: Mangroves are trees or shrubs that grow in saline water. They are found in tropical and subtropical regions, along the coasts of oceans and seas. Mangroves play an important role in protecting the coastline from erosion, and they provide a habitat for a variety of wildlife.
• Hilly terrain: Hilly terrain is characterized by rolling hills and mountains. It is found in many parts of the world, including Asia, Africa, Europe, and North America. Hilly terrain is often used for agriculture, forestry, and tourism.
• Population of Asiatic elephants: Asiatic elephants are the largest land mammals in Asia. They are found in a variety of habitats, including forests, grasslands, and swamps. Asiatic elephants are herbivores, and their diet consists of leaves, fruits, and grasses. They are social animals, and live in herds of up to 100 individuals.