Class 8 Science Chapter 7 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].

A wildlife sanctuary is a protected area, which is artificially created for the protection of wild animals in their natural habitat. Killing (poaching) or capturing of animals is strictly prohibited in these areas.

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

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.

Red Data Book is the source book which keeps a record of all the endangered animals and plants. There are different Red Data Book for plants, animals and other species.

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.

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.

The core zone of a Biosphere Reserve is devoted to strict protection of wildlife.

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.

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].

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

Sanjay Gandhi National Park, formerly Borivali National Park, is a large protected area in the northern part of Mumbai city in Maharashtra State in India.

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.

Cycling of cardboard cartons will lead to a decrease in the level of tree cutting and hence conserve forests.

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.