The correct answer is: B. Sal
Sal (Shorea robusta) is a large deciduous tree native to the Indian subcontinent. It is the most important tree in the Sal forests of the Terai region of India and Nepal. The tree is also found in the forests of Bangladesh, Bhutan, Myanmar, and Thailand.
Sal is a tall, straight tree with a dense crown. The bark is dark brown and rough. The leaves are large, simple, and alternate. The flowers are small and white, and they are borne in panicles. The fruit is a small, round drupe.
Sal is an important tree for both economic and ecological reasons. The wood is used for construction, furniture, and papermaking. The leaves are used as fodder for cattle. The tree also provides a habitat for a variety of animals, including tigers, leopards, and elephants.
Sal forests are an important part of the Terai ecosystem. The forests help to regulate the climate, prevent soil erosion, and provide a habitat for a variety of plants and animals.
The other options are incorrect because:
- Peepal (Ficus religiosa) is a sacred tree in Hinduism and Buddhism. It is found in many parts of India, but it is not a major tree in the Kalesars forest.
- Eucalyptus (Eucalyptus globulus) is an introduced tree that is found in some parts of India. It is not a major tree in the Kalesars forest.
- Babul (Acacia nilotica) is a thorny tree that is found in many parts of India. It is not a major tree in the Kalesars forest.