{"id":25097,"date":"2021-06-22T12:17:20","date_gmt":"2021-06-22T06:47:20","guid":{"rendered":"https:\/\/mcq-questions.com\/?p=25097"},"modified":"2022-03-02T10:36:33","modified_gmt":"2022-03-02T05:06:33","slug":"ncert-solutions-for-class-8-science-chapter-7","status":"publish","type":"post","link":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-8-science-chapter-7\/","title":{"rendered":"NCERT Solutions for Class 8 Science Chapter 7 Conservation of Plants and Animals"},"content":{"rendered":"

These NCERT Solutions for Class 8 Science<\/a> Chapter 7 Conservation of Plants and Animals Questions and Answers are prepared by our highly skilled subject experts to help students while preparing for their exams.<\/p>\n

Conservation of Plants and Animals NCERT Solutions for Class 8 Science Chapter 7<\/h2>\n

Class 8 Science Chapter 7 Conservation of Plants and Animals Textbook Exercise Questions and Answers<\/h3>\n

Page 86-87<\/span><\/p>\n

Question 1.
\nFill in the blanks:
\na. A place where animals are protected in their natural habitat is called ……………….
\nb. Species found only in a particular area is known as ……………….
\nc. Migratory birds fly to far away places because of ………………. changes.
\nAnswer:
\na. wildlife sanctuary,
\nb. endemic species,
\nc. climate<\/p>\n

Question 2.
\nDifferentiate between the following:
\na. Wildlife sanctuary and biosphere reserve
\nAnswer:<\/p>\n\n\n\n\n\n
Wildlife sanctuary<\/td>\nBiosphere reserve<\/td>\n<\/tr>\n
1. It is an area within which animals are protected from the possible dangers such as hunting. Their habitat is also conserved in this area.<\/td>\n1. It is a large protected area constructed for the conservation of biodiversity.<\/td>\n<\/tr>\n
2. It provides protection and suitable living conditions to wild animals.<\/td>\n2. It helps in the conservation of various life forms such as plants, animals and micro-organisms.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

b. Zoo and wildlife sanctuary
\nAnswer:<\/p>\n\n\n\n\n\n\n
Zoo<\/td>\nWildlife sanctuary<\/td>\n<\/tr>\n
1. Zoos are smaller places having some animals protected for public view.<\/td>\n1. Wildlife sanctuaries are larger places having wild animals in their natural habitat.<\/td>\n<\/tr>\n
2. It is an artificial habitat.<\/td>\n2. It conserves the natural habitat of animals.<\/td>\n<\/tr>\n
3. It provides protection only.<\/td>\n3. It provides protection and suitable living conditions to wild animals.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

c. Endangered and extinct species
\nAnswer:<\/p>\n\n\n\n\n\n
Endangered species<\/td>\nExtinct species<\/td>\n<\/tr>\n
1. It is a population of species that is on the verge of becoming extinct.<\/td>\n1. Plants and animals which no longer exist on earth are called extinct species.<\/td>\n<\/tr>\n
2. Blue whales, tigers, leopards, etc., are examples of endangered species.<\/td>\n2. Dodo, passenger pigeon, etc., are examples of extinct species.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

d. Flora and Fauna
\nAnswer:<\/p>\n\n\n\n\n\n
Flora<\/td>\nFauna<\/td>\n<\/tr>\n
1. It refers to all the plants living in a particular area.<\/td>\n1. It refers to all the animals living in a particular area.<\/td>\n<\/tr>\n
2. Sal, teak, mango, etc., form the flora of Pachmarhi biosphere preserve.<\/td>\n2. Leopard, wolf, wild dog, etc., form the fauna of Pachmarhi biosphere reserve.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\"NCERT<\/p>\n

Question 3.
\nDiscuss the effects of deforestation on the following:
\na. Wild animals
\nb. Environment
\nc. Villages (Rural areas)
\nd. Cities (Urban areas)
\ne. Earth
\nf. The next generation
\nAnswer:
\na. Wild Animals: When forests are cut, the natural habitat of animals is destroyed. Without their natural habitat, the animals are left with no place to live and breed. As a result of this, many animals are on the verge of their extinction.<\/p>\n

b. Environment: Environment is adversely affected by deforestation as ecological balance is disturbed. Carbon dioxide is not absorbed by plants and it gets accumulated in the atmosphere leading to global warming. It increases the temperature of the earth and disturbs the water cycle.<\/p>\n

c. Villages (Rural areas): The villagers depend on forests for their basic needs. They are closely related to forests. Due to deforestation, various wild animals run to nearby villages and cause danger to people living there. Also, villagers will not get sufficient fruits, fuel and wood due to deforestation.<\/p>\n

d. Cities (Urban areas): People in urban areas may not get sufficient products, for which raw materials come from forests. Reduction in farm output results in rise of price of food items.<\/p>\n

e. Earth: The whole earth is full of various ecosystems which together make up the biosphere. Deforestation disturbs the balance in the biosphere. It disturbs climatic patterns, natural habitats, etc.<\/p>\n

f. The next generation: The next generation will be the biggest sufferer because of deforestation. They will find drastic seasonal and climatic changes. Natural calamities like droughts and floods will become more frequent. Air quality will be very poor. They will also find very little vegetation and wildlife on the earth.<\/p>\n

Question 4.
\nWhat will happen if:
\na. we go on cutting trees?
\nb. the habitat of an animal is disturbed?
\nc. the top layer of soil is exposed?
\nAnswer:
\na. Mindless cutting of trees will result in deforestation. This will result in various kinds of damage to the environment. It will result in global warming, increased cases of floods and droughts. It will also result in many wild animals getting wiped off the earth.<\/p>\n

b. If the habitat of an animal is disturbed, it will suffer from shortage of food and space to live. Many wild animals would enter human settlements in search of food. Instances of clash between humans and wild animals will be on rise. A complete destruction to habitat may even lead to the extinction of that animal species.<\/p>\n

c. The soil will become deficient in humus and important nutrients. In the long run, the soil will become infertile. The whole area would become a desert in due course of time.<\/p>\n

Question 5.
\nAnswer in brief:
\na. Why should we conserve biodiversity?
\nb. Protected forests are also not completely safe for wild animals. Why?
\nc. Some tribals depend on the jungle. How?
\nd. What are the causes and consequences of deforestation?
\ne. What is Red Data Book?
\nf. What do you understand by the term migration?
\nAnswer:
\na. A healthy biodiversity is necessary to maintain a healthy ecosystem. This is important for our survival. Hence, we need to conserve biodiversity.<\/p>\n

b. In spite of various laws, it is difficult to completely stop the poaching of wild animals. Moreover, environmental damage in the surrounding areas can harm even the protected forests. Hence, it can be said that protected forests are also not completely safe for wild animals.<\/p>\n

c. Tribal people have been living in or around the jungle since ages. They use most of the forest produce for their day-to-day needs. For example, they use firewood as kitchen fuel, bamboo to make houses and many useful items, medicinal plants to treat diseases, etc. They also take various items from forests to sell them into the market in order to earn some money. Thus, tribals depend on the jungles in a significant way.<\/p>\n

d. Following are the causes of deforestation:<\/p>\n