81) Pink bollworm is a pest of -

82) Tornadoes (or andhis)are common in Punjab and haryana. The same are called _____ in west bengal.

83) With biotic succession in a lake environment the population and diversity of plants and animals:

84) Mt. Godwin Austen is one of the highest peaks of the Himalayas. It is also known as:

85) Arakan Yoma is the extension of the Himalayas located in