Introduction

National Park sanctuary and biosphere reserves are made for the protection and conservation of wildlife. That is flora and fauna of that specific area.

In forest ecosystems the home for various animals, plants, insects, mammals, and reptiles. Humans due to their personal profit continuously destroy the ecosystem, and as a result, animal and plant species are becoming extinct. To protect these species, governments of different countries made laws to protect wildlife under which hunting wild animals and cutting trees is a legal crime.

Protected areas are classified under three types as per government rules and laws. These are completely for wildlife. These comprehensive networks of protected areas are therefore essential for the natural conservation of wildlife. Which is further managed with different objectives for the welfare of society. These include national parks, sanctuaries, biosphere reserves, and natural reserves.

National Park, Sanctuary, and biosphere reserve difference

Natural Park	Sanctuary	Biosphere reserve
Natural parks provide the habitat for particular types of wild animals like lions, tigers, rhinos, etc.	Only specific species are there.	This is made for all the ecosystem-oriented life. This is not specific to one or two types of species.
The size of a national park ranges between 3000 sq. km	The size of the sanctuary ranges between 7000 sq. km.	The size of a biosphere reserve ranges between 5000 sq. km.
It has a confined boundary	It does not have a confined boundary	The biosphere reserve also has a confined boundary.
There is no specific work or law is there for gene pool conservation.	The sanctuary also does not have any law regarding gene pool conservation	Here is the biosphere reserve specific attention is given to conserving the gene pool.
Tourism is permissible	Permissible in the sanctuary	Tourism is generally not permissible in the biosphere reserve.
There are three zones in the national park, except for the buffer zone, other zones do not permit any interference.	Limited biotic interference is permitted.	No biotic interference is permitted except for the buffer zone.

Source: Wikipedia