CONSERVATION OF PLANTS AND ANIMALS | Class 8 Science Notes
By ConceptScroll Team · Published on 17 July 2026 · 3 min read

CONSERVATION OF PLANTS AND ANIMALS – this guide gives you a concise, exam-ready overview of CONSERVATION OF PLANTS AND ANIMALS from Class 8 Science, written by ConceptScroll editors and reviewed against the latest NCERT textbook.
Introduction
The chapter 'Conservation of Plants and Animals' opens with a narrative involving Paheli, Boojho, Professor Ahmad, and Tibu, who share their experiences from visits to various forest and wildlife areas such as Bharatpur Sanctuary, Kaziranga National Park, Lockchao Wildlife Sanctuary, Great Nicobar Biosphere Reserve, and Tiger Reserves. These visits highlight the rich biodiversity found in these protected areas. The chapter begins by posing a fundamental question: What is the purpose of making national parks, wildlife sanctuaries, and biosphere reserves? These protected areas are established to conserve the rich variety of plants and animals, ensuring their survival and maintaining ecological balance. The introduction sets the stage for understanding the importance of biodiversity and the urgent need to protect it from threats such as deforestation and habitat destruction. It emphasizes that plants and animals are not only essential for ecological balance but also for human survival, providing resources and maintaining environmental stability.
📊 Diagram: What is the purpose of making national parks, wildlife sanctuaries and biosphere reserves?
🔗 Connection: This introduction leads directly into the section on deforestation and its causes, explaining the threats to biodiversity that necessitate conservation.
Frequently asked questions
1. Fill in the blanks. (a) A place where animals are protected in their natural habitat is called __________. (b) Species found only in a particular area is known as __________. (c) Migratory birds fly to far away places because of __________ changes.
(a) A place where animals are protected in their natural habitat is called a wildlife sanctuary. (b) Species found only in a particular area is known as endemic species. (c) Migratory birds fly to far away places because of seasonal changes.
2. Differentiate between the following. (a) Wildlife sanctuary and biosphere reserve (b) Zoo and wildlife sanctuary (c) Endangered and extinct species (d) Flora and fauna
(a) Wildlife sanctuary vs Biosphere reserve:
- Wildlife sanctuary is an area where animals are protected in their natural habitat with some restrictions on human activities.
- Biosphere reserve is a larger area that includes protected zones and buffer zones aimed at conserving biodiversity and promoting sustainable development.
(b) Zoo vs Wildlife sanctuary:
- Zoo is a place where animals are kept in captivity for public viewing and education.
- Wildlife sanctuary is a natural habitat where ani
3. Discuss the effects of deforestation on the following. (a) Wild animals (b) Environment (c) Villages (Rural areas) (d) Cities (Urban areas) (e) Earth (f) The next generation
(a) Wild animals: Loss of habitat leads to decline in animal populations and possible extinction. (b) Environment: Reduction in oxygen production, increase in carbon dioxide, soil erosion, and loss of biodiversity. (c) Villages (Rural areas): Reduced availability of forest resources like fuel, fodder, and medicinal plants; increased vulnerability to natural disasters. (d) Cities (Urban areas): Increased pollution and heat due to loss of green cover; reduced air quality. (e) Earth: Disturbance in
4. What will happen if. (a) we go on cutting trees. (b) the habitat of an animal is disturbed. (c) the top layer of soil is exposed.
(a) If we go on cutting trees continuously, it will lead to deforestation causing loss of biodiversity, climate change, soil erosion, and disruption of water cycles. (b) If the habitat of an animal is disturbed, the animal may lose shelter and food sources, leading to migration, population decline, or extinction. (c) If the top layer of soil is exposed, it becomes vulnerable to erosion by wind and water, leading to loss of fertile soil and reduced agricultural productivity.
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