World Biodiversity Day is observed on December 29.

Yes, the  threatened species are those which are suffering from the danger of extinction. An endangered species is a population of organisms which is at risk of becoming  extinct because it is either less in number or threatened by changing environmental or predation parameters, e.g. blue whale, tiger, bonobo, gaint panda etc.

Biodiversity includes all living organisms, from a single celled microorganism to multicellular organisms. So, it should be conserved for all living organims.

India's first National Park was established in 1935 as Hailey National Park and at present it is known as Jim Corbett National Park.

Wildlife sanctuaries are meant to conserve animals and birds in their natural habitat. Poaching is not allowed in wildlife sanctuary.

Silviculture is the practice of controlling the establishment, growth, composition, health and quality of forests to meet diverse needs and values of the many landowners. 

Deforestation is the removal of a forest or stand of trees from the land. It has been practiced by humans for thousands of years chiefly as a result of clearing land for commercial and industrial development, cutting trees for building houses, making furniture and paper, clearing of land for growing  crops and to develop pasture for  grazing animals.

The IUCN Red List system was first conceived in 1963 and set a standard for species listing and conservation assessment efforts. For more than 30 years the Species Survival Commission has been evaluating the conservation status of species and subspecies on a global scale - highlighting those threatened with extinction and promoting their conservation.

Wildlife conservation  is the science of analyzing and protecting the Earth's biological diversity, which is the variation of life forms within a given ecosystem.Biodiversity on the Earth today consists of many millions of distinct biological species. Wildlife conservation is the process of individuals and organization to protect and preserves these species through conservation education, preservation of habitat and management of fish and wildlife.

In situ conservation is the conservation of genetic resources in natural populations of plant and animal species, such as forest genetic resources  in natural populations of tree species. It is the process of protecting a endangered plant or animal species in its natural  habitat, either by protecting or cleaning up the habitat itself, or by defending the species fro predators. It is applied to conservation of agricultural biodiversity in  agroecosystemsby farmers, especially those using unconventional farming practices. A Botinical Garden is a place where a wide variety of plants are cultivated for scientific, educational, and ornamental purposes, often including a library, a herbarium, and greenhouses;  & an arboretum.Originally, a collection of living plants designed to illustrate relationships within plant groups. Most modern botanical gardens are concerned primarily with exhibiting ornamental plants in a scheme that emphasizes natural relationships. A display garden of mostly woody plants (shrubs and trees) is often called an arboretum The botanical garden as an institution can be traced to ancient China and many Mediterranean countries, where such gardens were often centers for raising plants used for food and medicines. Botanical gardens are also reservoirs of valuable heritable characteristics, potentially important in the breeding of new varieties of plants. Still another function is the training of gardeners. The world's most famous botanical garden is Kew Gardens.

A nature reserve  is a  protected area of importance for wildlife or features of geological or other special interest, which is reserved and managed for conservation  and to provide special opportunities for study or research.

An ecologist is a person who studies the relation between organisms and their environment and aims to conserve the ecology.  

Kanha National Park is located in Mandla and Balaghat districts of Madhya Pradesh.

Hemis National Park is the largest National Park in India. It is located in Jammu & Kashmir.

Carolina Parakeet was hunted for its feathers and slaughtered as pests. It was last sighted in Florida in 1920.

Sun is the ultimate source of energy for the earth.It does not cause soil erosion.

Wildlife helps in maintaining ecological balance.The different organisms have their unique positions in food chains &  food webs which keep ecological balance maintained. Wild life also contributes to the maintenance of material cycles such as carbon and nitrogen cycles in the nature.

Not  only for tiger but for all carnivorous animals. Evergreen forests are the best habitat for them and here their number will be the maximum.

Yes,carrying capacity of a habitat is the maximum number of individuals of a defined species that a given environment can support over the long term. The notion of limits is fundamental to the concept of carrying capacity.

 Madhya Pradesh has the maximum number of National Parks 9 and so does Andaman and Nicobar Islands. 

Biosphere is the part of the earth and its atmosphere in which living organisms exist.It is capable of supporting life.  

A National Park is a reserve of natural or semi-natural land, declared or owned by a government which is set aside for human recreation and animal protection.

This option contains all the basic requirments of an organism.