This PSEB 8th Class Science Notes Chapter 7 Conservation of Plants and Animals will help you in revision during exams.
PSEB 8th Class Science Notes Chapter 7 Conservation of Plants and Animals
→ These days the forests are being cut down and that land is used for other purposes.
→ Some natural causes of deforestation have been forest fires and severe drought.
→ Deforestation increases the temperature and pollution on the earth. It disturbs the balance in nature.
→ Deforestation also leads to global warming, change in soil properties, results in soil erosion, leads to a decrease in water holding capacity of the soil.
→ The government has framed rules, methods, and policies to protect and conserve plants and animals in forests.
→ The biosphere is that part of the earth where organisms live or which supports life.
→ Biodiversity can be defined for a specified geographical region, or for the entire biosphere.
→ Biosphere reserves are the areas meant for the conservation of biodiversity.
→ The plants and animals found in a particular area are known as flora and fauna respectively of that area.
→ A species is a group of populations that are capable of interbreeding with each other.
→ The areas where wild animals are protected and preserved area known as wildlife sanctuaries.
→ It provides protection and suitable living conditions to wild animals.
→ Sometimes the protected forests are not safe because the people living in the neighbourhood encroach upon them and destroy them.
→ National parks preserve flora, fauna, landscape, and historical objects of an area.
→ The forest teak of India is found in Satpura National Park.
→ Project Tiger was launched on 1st April 1973 by our government to protect the tigers of our country.
→ Endangered animals are those which are facing extinction.
→ The ecosystem consists of plants, animals, and micro-organisms in an area alongwith non-living components.
→ Red Data Book is a book that keeps a record of all the endangered animals and plants.
→ Migratory birds fly too far away from specific areas every year during a particular time because of climatic changes.
→ Paper is one of the important products we get from forests. So we should save paper.
→ Reforestation is the restocking of the destroyed forests by planting new trees.
→ Biodiversity: It refers to the variety in life existing on earth, their interrelationships, and their relationships with the environment.
→ Deforestation: Cutting and clearing trees on a large scale is called deforestation.
→ Desertification: The conversion of fertile land into the desert is called desertification.
→ Ecosystem: The relationship between a living community and its non-living environment is known as an ecosystem.
→ Reforestation: It is the restocking of the destroyed forests by planting new trees.
→ Endangered Species: The species which are facing the danger of extinction are called endangered species. e.g. Leopard, Wild dog, etc.
→ Fauna: The animals found in a particular area constitute the fauna of that area.
→ Red Data Book: A book that contains a record of all the endangered species is called a red data book.
→ Endemic Species: These are exclusively found in a particular area only which may be any geographical unit.
→ Flora: The plants found in a particular area constitute the flora of that area.
→ Extinct: It means the disappearance of the species from the earth.
→ Migration: Going far away from the original habitat of some species during a particular period of the year is called migration.
→ Sanctuaries: These are the places where killing or capturing any animal is strictly prohibited.
→ National Parks: These are the reserves or places which preserve flora, fauna, landscape, and historical objects of an area.
→ Biosphere Reserves: It is a specified area in which multiple uses of land is permitted by dividing it into certain zones and each zone is specified for a particular activity.