Question

All the following are included under in situ conservation except:
A. Biosphere Reserve
B. National Park
C. Wildlife Sanctuary
D. Botanical Garden

Answer 1

Hint: The conservation of the wildlife refers to the protection of wildlife and prevention of their extinction. Conservation is of two types: ex situ and in situ. Ex Situ as the name suggests is conserving the organisms in far off areas from their original habitat. In Situ conservation is conserving the organisms in their habitat.

Complete answer:
To solve the question, we must be well aware of the types of conservation.
Ex Situ conservation refers to the conservation of the plants and animals in places away from their original habitat. The animals are relocated from their habitat and kept in especially protected areas. These include aquariums, botanical gardens, gene banks etc.

In Situ conservation refers to the conservation of the plants and animals in their own habitat. These include biosphere reserves, wildlife sanctuary and national parks.
Biosphere reserves are large areas where organisms are kept for a longer period of time. National Parks and Wildlife Sanctuaries are large protected areas where these animals are taken care of.

Botanical garden is an area which is especially made to conserve, preserve and protect the various plant species. This is a type of ex situ conservation wherein the plants from different places are brought and made to grow at a particular place. Since these plants are brought from the different parts of the world therefore each one of these require special environmental conditions to grow and reproduce. So these botanical gardens have shade houses and greenhouses. In India the botanical gardens are present in West Bengal, Dehradun etc.

Since, now we are well aware of the in situ conservation, therefore the correct answer to the question is Botanical Garden.

Note: Here it must be noted that crescograph consists of glass plate and clockwork gears. It can detect even the slightest change in the length of the plant. It can measure the change in length from 1/1000 to 1/10000 of an inch. The electronic crescograph is even more sensitive.