Dense evergreen vegetation of broad sclerophyllous leaves and shrubs with fire resistant resisnous plants is known as

Plains with snow, ice, and frozen soil for most of the year are found in

Assertion: Insectivorous habitat of plants is to cope up $O_2$ deficiency.
Reason: Insectivorous plants are partly autotrophic and partly heterotrophic.

Tropical dense forests are due to

Initial seral stages in succession