Biodiversity refers to the variability among all living beings from all resources including terrestrial, marine and other aquatic eco-system and the ecological complexes of which they are a part.
There are three types of bio-diversity.

- Eco-system diversity:
It is the variety of frequency of distinct eco-systems including the variability of habitats, biotic communities and ecological process in the given place.

- Species Diversity:
It is the frequency and variability among the living organisms by...

9 species of birds and 27 species of mammals of Nepal have been declared / included in the protected list.

Any two conservation measures of biodiversity in our locality are:
- Protection of habitat.
- Control of illegal trade and hunting of fauna and flora.

Any two adverse effect on biodiversity due to human activity are:
- Destruction of habitat.
- Degradation of eco-system.

The area surrounding the national parks and conservation areas managed for the human settlement is called buffer zone.

Any two causes of rareness of Asiatic Rock Python are:
- Encroachment of its habitat.
- Illegal hunting and trades.

Any two medicinal value of Sarpaganda are listed below:
- It is the medicinal herbs.
- It can be used to treat heart diseases.

Any two importance of Himalayan yew are:
- It is used to cure cancer of earlier stage.
- It can be exported as medicinal herbs.

Ex-sito conservation refers to the conservation of the living beings or biological resources outside their natural habit.

Biodiversity can be defined as the variability among living organisms from all the sources including terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are a part.