Consider the following trees :

1. Jackfruit (Artocarpus heterophyllus)

2. Mahua (Madhuca indica)

3. Teak (Tectona grandis)

How many of the above are deciduous trees? 

The correct answer is option 2.

Key Points 

• The tropical jackfruit tree (Artocarpus heterophyllus)
  • It is a large evergreen tree that bears edible fruit. 
  • ​They are large edible summer fruits and are good sources of nutritiosourcesnal and antioxidant components that hold their potential for nutraceutical development.

• Madhuca Indica:
  • It is commonly known as mahua, and is a large tree found in the dry deciduous forests of India.
  • ​It is found frequently in the central and northern plains and forests of India.
  • Researchers have explored nonconventional oil sources, such as Jatropha curcas (Jatropha), Camelina sativa L. Crantz (Camelina), Ficus elastica (rubber), Madhuca indica (mahua), Nicotina tabacum (tobacco), Pongamia pinnata (karanja), and Calophyllum inophyllum (polanga), as potential resources for the production of biodiesel.

• Teak wood:
  • ​These trees grow in tropical deciduous forests. Teak wood is moderately hard, and teak is durable and fire resistant.

Hence, option 2 is correct answer.​