Some of the forest trees are also covered with different types of creepers and climbers. Some of the important reasons for the large-scale cutting down of forest trees (or deforestation) are given below: (i) Forests are cut down to obtain firewood. Forests make a strong net of tree roots to hold the soil from being washed away. Q2: Explain how forests prevent floods. This water vapour helps in the formation of clouds and bring rain on the. The level of employment in forestry … Forests and tribals: Some of the common trees found in the forests in our country are: Sal, Teak, Sheesham, Neem, Palash, Semal, Bamboo, Fig, Khair, Eucalyptus, Kikar, Arjuna, Banyan and Peepal. Forests provide shelter for many people along with animals and plants. These are mainly divided into three categories – Rain Forests, Coniferous Forests and Deciduous Forests. Q9: Which forms the lowest layer in a forest? Thus, forests bring sufficient rainfall on the earth. (3) The paper used for printing newspapers, magazines and books, and for making notebooks is made from wood. Answer: Forest acts as a natural absorber of rainwater and … The cutting down of forests (or deforestation) is driving out many populations of people who have been living in forests for centuries. Forests also comprise non-living components such as lakes, ponds, soil, rocks, etc. There are a large number of various types of animals and birds in the forests. It is also leading to the loss of traditionally harvested forest products such as firewood, fruits, honey, sealing wax (lac), gum, catechu, herbs, and fodder which supplied tribal people with their needs. Your email address will not be published. CBSE Class 7 Science Forests: Our Lifeline. Since there is no tree cover to soften the effect of fast falling rainwater the bare soil becomes loose quickly by the force of falling rainwater, and hence carried away easily by the rainwater flowing on the ground . (d) Forests are green lungs. Prevention of global warming: Question 2 Explain how forest prevent floods? Deforestation has many ill-effects on the environment. People become homeless when such disaster occurs. Thus, forests bring sufficient rainfall on the earth. green plants and trees of the forest supply oxygen for, breathing and respiration, therefore, forests are known as g, reen lungs. This water vapour helps in the formation of clouds and bring rain on the earth. Forests provide the people living in it with. Importance of Forests Importance of forests. It is very important for every country to have 30% land covered by forests. Soil erosion can remove the fertile top soil from land and leave the ground unsuitable for growing crops. A forest is defined as an area forming an ecosystem. 2. If the forests are cut down, then in the absence of trees and plants of the forest, the excessive amount of rainwater falling during heavy rains cannot be absorbed into forest ground. Deforestation The trees in the forests absorb the carbon emission from the neighbouring urban centres, refreshing and returning fr… The green plants and trees of the forest absorb carbon dioxide from the atmosphere for the process of food making (called photosynthesis). 17.2 Some forest animals Fig. The human beings and other animals give out carbon dioxide during respiration which goes into atmosphere. During the … The people living in forests are termed to be tribals. fertile top soil from a region by wind, rain or river water is called, Soil erosion occurs in those areas of land which are not covered by vegetation (like trees, and plants). It helps in storing, purifying and capturing water. The forest releases this absorbed water slowly and steadily into the rivers through the soil. Thus, forests help in, the conservation of soil. The forest releases this absorbed water slowly and steadily into the rivers, By holding back rainwater and then releasing it slowly into rivers, the forests prevent, the occurrence of floods in the rivers. These categories occupy different levels in the food chain. Wood pulp is used in manufacturing paper. By removing carbon dioxide from atmosphere, the forests stop the level of carbon dioxide in the atmosphere from rising too high. By holding back rainwater and then releasing it slowly into rivers, the forests prevent the occurrence of floods in the rivers. a perfect water cycle in nature and meet our freshwater requirements. Timber is an important raw material; for construction activities and for making furniture and artifacts. In this way, the forests not only help in controlling floods, they also help. The different layers of vegetation present in a forest provide food and shelters to animals, birds and insects which live in the forest. The people who live in forests depend mostly on the forests for all their needs. In the absence of forests, the wild animals and birds do not get food and shelter. Find paragraph, long and short essay on Save Trees for your Kids, Children and Students. (a) Dead and decaying matter enrich the soil of the forest. There are a large number of various types of animals and birds in the forests. Explain how animals dwelling in the forest help it grow and regenerate. sofa, etc. Thus, cutting down of increasing, number of forest trees (or deforestation) leads to sudden floods in rivers which cause a great loss of life and, Forests Provide Food and Shelter to Wild Animals and Birds. Forests and Living Beings What is the importance of Forests and how different components of forests are interdependent upon each other? (iii) Forest are cut down to obtain wood for making paper. Question 4 Describe the importance of forest for us, animals and environment? temperate evergreen forest 4. of forests, the wild animals and birds do not get food and shelter. Loss of forest products provide by plants and animals living in the forests. Purifies the Air. Answer: Microorganisms in forest acts as decomposer which decomposes dead and decaying matter, thereby cleaning environment. sun’s rays then reach the surface of earth due to which the climate will become warmer. the process of food making (called photosynthesis). Forest provides homae (shelter), food and water to the animals living there. This leads to soil erosion. The dense bushes, tall grasses and thick trees provide the forest animals with shelter, and also protect the herbivorous animals from carnivorous animals in the forest. Not only this, forests form a complete ecosystem that includes various living organisms such as trees, shrubs, plants, microorganisms, wild animals and birds. The green plants and trees of the forest release oxygen during the process of food making (called photosynthesis). … The large amount of rainwater will then suddenly flow into rivers causing the flooding of rivers. Forests are valuable resources. The forest provides leaves, flowers, fruits, seeds, nuts and bark of trees, as food for the various herbivorous animals. Forests are a very important natural resource provided to us. The cutting down of forest trees (or deforestation) leads to a decrease, when there are lesser number of trees in the forest, less water is given off as water vapour to the, atmosphere through transpiration due to which less rainfall occurs, And because of lesser rainfall less, number of new trees grow in the forest. The roots of trees and plants growing in the forest bind the particles of top soil and hold the soil together firmly. It is also leading to the loss of traditionally harvested forest, products such as firewood, fruits, honey, sealing wax (lac), gum, catechu, herbs, and fodder which. (a) Tall Trees (b) Shrubs (c) Herbs (d) None of these Question from very important topics are covered by NCERT Exemplar Class 7.You also get idea about the type of questions and method to answer in your Class 7th examination. tropical deciduous forest 3. 17.3 Forest as habitat an example of a habitat in Class VI (Fig. Forests form an important … Rainfall becomes scanty as there are no trees. NCERT Solutions for Class 7 Science CBSE, 17 Forests: Our Lifeline. It also involves the reversal of deforestation and environmental pollution. Significance of forests Forests serve different purposes. Afforestation influences the climate of a particular area and shows positive effect on the environment. So, forests are the major suppliers of oxygen needed by humans and other animals for breathing and respiration. ), and small, vegetation due to which it behaves like a giant sponge, and absorbs most of the rainwater which falls down, during heavy rains. 1. Register online for Science tuition on Vedantu.com to score more marks in your examination. Afforestation helps in restoring balance in the environment. (iv) Forests are cut down to clear land for cultivation of crops in agriculture. Some examples are given below: Firewood and dry leaves are used as kitchen fuel in villages which are close to a forest. Answers: 1. Food chains are disturbed due to their loss. The trees and other plants that form a part of the forests create an environment that is healthy for the breeding several species of animals. and other animals for breathing and respiration. Thus, forests remove carbon dioxide from the atmosphere and put oxygen into the atmosphere by doing this, forests maintain the balance of carbon dioxide and oxygen in the atmosphere. In this way, forests help in maintaining a perfect water cycle in nature and meet our freshwater requirements. Forests are of great importance to mankind. thank you mam, The forest floor is covered with a lot of decaying material (like decaying plant leaves, etc. 1. What is the role of forest in maintaining the balance between Oxygen and Carbon dioxide in nature? Students are advised to refer to the attached assignments and practice them regularly. Carbon dioxide is considered to be a greenhouse gas. and birds are becoming extinct (disappearing completely) due to the destruction of forests. forests (or deforestation) leads to the destruction of natural habitat of wild animals and birds. If the forests are cut down, then in the absence of trees and plants of the forest, the excessive amount, of rainwater falling during heavy rains cannot be absorbed into forest ground. Q8: Which of the following is NOT TRUE about forests? (ii) Forests are cut down to obtain timber. (1) Wood is used as a fuel wood (or firewood) in many households as a source of heat for cooking food. The cutting of … Nov 29, 2020 - Importance of Forests Class 7 Video | EduRev is made by best teachers of Class 7. Thus, all the needs of animals living in a forest are fulfilled. The forest trees suck water from the soil through their roots and release water vapour into the air through transpiration (evaporation from leaves). 1. They could see now how the forest provides a home for many animals and plants. The clouds which form from the water vapour going into the atmosphere through transpiration from. Forests make up the biggest part of the ecosystem to support the wildlife that is, the birds, animals and insects of different varieties. Important Forest Produce: Many important forest produce are useful for us. Explain how forests prevent soil erosion and floods. Why forests are called 'green lungs? This is very important because carbon dioxide is a greenhouse gas which absorbs heat rays. In this way, the plants reduce the amount of carbon dioxide in the atmosphere. Many tribal people of our country live in forests. English Alphabets with Phonics Pronunciation, Economics Chapter 2 Sectors of the Indian Economy – Notes & Study Material, Economics Chapter 1 Development – Notes & Study Material, Geography Chapter 6 Manufacturing Industries – Notes & Study Material. Previous Long Answer Type Questions. So, there is necessity to think and set to conserve forests. 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