1. Flora : The plants of a particular region.
2. Fauna : The animals of a particular region.
3. Dense forest : The trees that grow close together.
4. Climate : The weather conditions prevailing in an area over a long period.
5. Transpiration : The exhalation of water vapour through the stomato.
6. Sundarbans : The dominant mangrove species in West Bengal.
7. Coniferous trees : Shrubs having needle shaped leaves.