Question

The number of ecological hotspots in the world is-
A.10
B.20
C.25
D.36

Answer 1

Hint: There are so many biodiversity hotspots in the world in which the 34 of them are considered as most important. There are 9 biodiversity hotspots in Africa, in Asia and Australia there are 12 biodiversity hotspots, in the north and central America there are 4 biodiversity hotspots, in South America, there are 5 biodiversity hotspots and in Europe and Central Asia, there are 4 biodiversity hotspots.

Complete answer:A biodiversity hotspot is a biogeographic region that is both a significant reservoir of biodiversity and is threatened with destruction. The term biodiversity hotspot specifically refers to the biologically rich areas around the world that have lost nearly 70 percent of their original habitat.
India has only 4 biodiversity hotspots. the Himalayas, the Western Ghats, the Indo-Burma region, and the Sundaland, and a group of Islands are considered a biodiversity hotspot. These hotspots have a large number of endemic species.
Kohistan Pakistan is the biodiversity hotspot that covers an area of 803,940 sq km. It is rich in biological diversity. It is present in the watershed of the Indus River which is formed by the three great mountain masses, the Karakoram, Himalaya, and the Hindu Kush.
There are three biodiversity hotspots in South Africa namely the Cape Floristic Region, the Succulent Karoo shared with Namibia, and the Maputaland-Pondoland-Albany hotspot which is recognized as an international biodiversity hotspot.
The unique biogeographic region of Southwest Australia, stretching from Shark Bay in the north to Israelite Bay in the south, covers over 300 000 square kilometers and is recognized as an international biodiversity hotspot.
In North America and Central America, there are mainly three regions that qualify as biodiversity hotspots namely the California Floristic Province, Madrean pine-oak woodlands, and Mesoamerica.
Hence, the correct option is (D) 36.

Note:In Africa, there are 9 biodiversity hotspots they are:
Eastern Afro-Montane, The Guinean forests of Western Africa, Horn of Africa, Madagascar and the Indian Ocean Islands, Maputaland, Bodoland, Albany hotspot, Succulent Karou, East Melanesian islands, South Africa's Cape floristic hotspot, Coastal forests of Eastern Africa

Biodiversity hotspots in Europe and Central Asia are:
Caucasus region, Iran-Anatolia region, The Mediterranean basin and it's Eastern Coastal region, Mountains of Central Asia.