Which one of the following is $NOT$ an example of ex situ conservation of endangered species?

Which one of the following is $NOT$ the in situ conservation of biodiversity?

One of the $ex \, situ$ conservation methods for endangered species is:

The type of conservation in which the threatened species are taken out from their natural habitat and placed in a special setting where they can be protected and given special care is called:

Just as a person moves from Delhi to Shimla to escape the summer heat,where do millions of migratory birds go to escape the harsh winter of Siberia and other northern regions?

Which of the following is recognized as a biodiversity hotspot in India?