Class 8 Science Chapter 5 MCQ

Wild buffalo is an endangered species because its population is diminishing. Endangered species are the species which are facing the risk of extinction. Their numbers are decreasing to such a low level that they might face extinction soon.

Zoos are places where animals are protected in artificial setting instead of their natural habitat.

Wildlife sanctuaries are some areas where wild animals are protected and preserved.

Wildlife sanctuary, national parks are in situ conservation methods of biodiversity. These places are meant for conservation of species in their “Natural Habitat”. The other options i.e., zoological and botanical gardens are ex situ conservation methods. These places conserve the species outside its natural habitat.

Here, are all the statements are correct. Hence, your answer will be option [D].

Here, are all the statements are incorrect, except option [A]. Hence, your answer will be option [A].

Here, all the statements are correct. Hence, your answer will be option [D].

Explanation: The species which are facing the risk of extinction due to their diminishing numbers are called endangered species. An animal species become endangered due to: i)They are few in number. ii)They are being killed by predators. iii)Hunted by human. iv)Their natural habitat is being destroyed.

Blackbuck, elephant, python and golden at together represent fauna in a forest. The animals of particular area called fauna of that area. Flora is the plants of a particular area. Ecosystem includes all the living organisms of an area and their physical environment. Species is a group of population which are capable of interbreeding.

The domestic yak is a long-haired domesticated bovid found throughout the Himalaya region of southern Central Asia. The yak-rearing states of India are Arunachal Pradesh, Sikkim, Uttar Pradesh, Himachal Pradesh and Jammu and Kashmir.

Endemic plants are special because they are found in only one location on the planet, and nowhere else. It is due to their survival in particular climatic and geological conditions.

The process of a bird moving from one place to another due to the climatic changes is called migration. It is an adaptation to escape extreme weather conditions and lack of nesting areas. The fly for laying eggs as the weather in their natural habitat becomes very inhospitable.

Here all the statements are correct. Hence, your answer will be option [D].

Soil erosion will be the environmental impact of clearing larger patches of forest or deforestation. When trees are cut down then there are no roots to bind the soil particles and prevent them from being carried away by strong wind or water. This removal of top layer of soil is called soil erosion.

Kanha Tiger Reserve, also known as Kanha–Kisli National Park, is one of the tiger reserves of India and the largest national park of the state of Madhya Pradesh. The present-day Kanha area is divided into two protected areas, Hallon and Banjar, of 250 and 300 square kilometers (97 and 116 sq mi), respectively. Kanha Tiger Reserve hosts populations of tiger, leopard, wild dog, sloth bear, foxes and jackals. Barasingha is adapted to hard ground. Gaur (Bos gaurus) inhabits meadows and waterholes in the park. Blackbuck has become very rare.

Keoladeo National Park or Keoladeo Ghana National Park formerly known as the Bharatpur Bird Sanctuary in Bharatpur, Rajasthan, India is a famous avifauna sanctuary that hosts thousands of birds, especially during the winter season. Over 230 species of birds are known to be resident. Keoladeo Ghana National Park is a man-made and man-managed wetland and one of the national parks of India. The reserve protects Bharatpur from frequent floods, provides grazing grounds for village cattle, and earlier was primarily used as a waterfowl hunting ground.

Project Tiger is a wildlife conservation project which was launched by the government of India in 1972 to protect the tigers in the country. The objective of this project was to ensure the survival and maintenance of the tiger population in specially constituted “Tiger Reserves” throughout India.

Here, all the statements are correct. Hence, your answer will be option [D].

Here, all the statements are correct. Hence, your answer will be option [D].

Here, all the statements are correct. Hence, your answer will be option [D].

Deforestation leads to increase in floods. It leads to a decrease in rainfall and water level.

The snake expensive skin is sold in market for expensive drugs and ointment.

The siberian crane comes to India and is found in Satpura as the weather in Siberia is extreme with scarcity of food and light.

Sariska Tiger Reserve is a national park and tiger reserve in the Alwar district of the state of Rajasthan India and it has reserves of wildlife like leopard, crocodiles, Sambar, Chitel, Nilgai, Chausingha, Wild Boar and Langur.

Bandipur National Park, an 874-sq.-km forested reserve in the southern Indian state of Karnataka, is known for its small population of tigers.