Explanation:

iii   i   iv   ii

Teak is a tropical hardwood tree species placed in the flowering plant family Lamiaceae. Some forms of teak are known as Burmese teak, Central Province teak, as well as Nagpur teak. T. grandis is a large, deciduous tree that occurs in mixed hardwood forests.
Santalum album, or Indian sandalwood, is a small tropical tree, and is the most commonly known source of sandalwood. It is native to southern India and Southeast Asia.
Cedrus deodara, the deodar cedar, Himalayan cedar, or deodar is a species of cedar native to the western Himalayas in Eastern Afghanistan, Northern Pakistan and India, Southwestern Tibet and Western Nepal.
Mahogany is a straight-grained, reddish-brown timber of three tropical hardwood species