NCERT Solutions for Class 7 Science Chapter 17 Forests Our Lifeline
NCERT Solutions for Class 7 Science Chapter 17 are given below with detailed explanations for CBSE Class 7 students. Students can check the detailed solutions for Class 7 Science Chapter 17 here
Jasdeep Bhatia8 Jan, 2024
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NCERT Solutions for Class 7 Science Chapter 17
NCERT Solutions for Class 7 Science Chapter 17: Mastering NCERT Solutions for Class 7 Science Chapter 17 is pivotal for Class 7 CBSE students to secure good marks in school examinations. These solutions contribute significantly to the academic journey of students. NCERT Solutions for Class 7 Science Chapter 17 are a comprehensive guide, aiding students in addressing all questions and problems while fostering a clear comprehension of the chapter. These NCERT Solutions align with the CBSE Class 7 Science syllabus, ensuring a well-defined preparation. Made by expert teachers from various parts of India, these solutions instil confidence in students, preparing them to face exams without fear.NCERT Solutions for Class 7 Science Chapter 17 Forests Our Lifeline Overview
The NCERT solution for Class 7th Science Chapter 17 provides a clear and detailed explanation of Science Chapter 17: Forest: Our Lifeline. This solution is designed to help students understand the topic easily and reduce exam anxiety. It fosters self-confidence among students and serves as a valuable resource for securing good marks by covering potential exam questions. Chapter 17 of Science Class 7, titled Forest: Our Lifeline, discusses the state of forest lands in our country. It highlights the significance of forests in our lives and illustrates the consequences of forest depletion on the environment and human lives. The chapter is based on a field visit to a forest, where students learn about various plants and animals found in these ecosystems. Class 7 Science Chapter 17, titled "Forests: Our Lifeline," stands out as an engaging section within the Class 7 Science curriculum.| CBSE Syllabus Class 7 | |
| CBSE Class 7 English Syllabus | CBSE Class 7 Math Syllabus |
| CBSE Class 7 Social Science Syllabus | CBSE Class 7 Science Syllabus |
NCERT Solutions for Class 7 Science Chapter 17 Forests Our Lifeline
Presented here are the NCERT Solutions for Chapter 17, crafted to facilitate interactive learning for students. These solutions, devised by skilled educators, aim to simplify the understanding of the covered concepts. They serve as a valuable resource for students, offering familiarity with the exam pattern and the types of questions typically encountered in examinations. 1. Explain how animals dwelling in the forest help it grow and regenerate. Ans: Forest animals aid in the dispersal of plant seeds. The seed can be fertilised with animal excrement, and the seedlings can grow into plants. Squirrels, bats, and other animals, for example, contribute to seed dissemination. 2. Explain how forests prevent floods. Ans: Trees help to safeguard the environment in a variety of ways, one of which is flood protection. Without trees, direct heavy rains can deplete the soil and produce flooding, as well as soil erosion. However, tree roots hold the soil underneath and prevent soil erosion. As a result, trees and forests contribute to the prevention of floods in the natural world. 3. What are decomposers? Name any two of them. What do they do in the forest? Ans: Decomposers degrade substances for sustenance and nutrition, as the name implies. Decomposers, in general, are microbes that break down dead plants and animals to offer and receive nutrients. Fungi and bacteria are two examples of microorganisms. 4. Explain the role of forests in maintaining the balance between oxygen and carbon dioxide in the atmosphere. Ans: Maintaining of Oxygen and Carbon Dioxide in Atmosphere Plants utilise carbon dioxide for photosynthesis and then release oxygen, as we all know. Animals breathe this oxygen and exhale carbon dioxide. The plants then use carbon dioxide, continuing the cycle. As a result, forests contribute to the maintenance of the oxygen-carbon dioxide balance in the atmosphere. 5. Explain why there is no waste in a forest. Ans: In forests, everything is reused and repurposed. Decomposers are essential in the decomposition of garbage (dead plants or animals). The decomposed trash can be utilised as fertiliser for the development of trees. As a result, there is no waste in the forest. 6. List five products we get from forests? Ans: Products we acquire from forests include:- Honey
- Rubber
- Wood
- Medicinal herbs
- Oils
- Herbs from the ground layer in the forest.
- A forest is a purifier of air and water.
- The decaying leaves and animals dropping in a forest enrich the humus.
- The insects, butterflies, honey bees, and birds help flowering plants in pollination.
10. In Fig 17.15, the artist has forgotten to put the labels and directions on the arrows.
Mark the directions on the arrows and label the diagram using the following labels: clouds, rain, atmosphere, carbon dioxide, oxygen, plants, animals, soil, roots, water table.
Ans:
Atmospheric Components
11. Which of the following is not a forest product?
(i) Gum
(ii) Plywood
(iii) Sealing wax
(iv) Kerosene
Ans:
(iv)
Kerosene is not a product of the forest. Kerosene is an organic product obtained from the process of distillation of crude oil.
12. Which of the following statements is not correct?
(i) Forests protect the soil from erosion.
(ii) Plants and animals in a forest are not dependent on one another.
(iii) Forests influence the climate and water cycle.
(iv) Soil helps forests to grow and regenerate.
Ans:
(ii)
Plants and animals in a forest are not dependent on one another. This is not the right statement as plants and animals are interdependent on each other to fulfil their requirements of growth and development.
13. Microorganisms act upon the dead plants to produce.
(i) Sand
(ii) Mushrooms
(iii) Humus
(iv) Wood
Ans:
(iii)
Humus. Humus is an organic product formed from leaf litter produced in the soil by the process of microbial decomposition.
CBSE Board Exam Centre List 2024
NCERT Solutions for Class 7 Science Chapter 17 Forests Our Lifeline At a Glance
This section describes the feel and adventure of a child discovering the forest for the first time alongside a new friend. It highlights the significance of forests and the downsides of cutting down trees. The forest is a thick area filled with diverse plant and animal life, crucial for various living creatures. The trees in the forest play a vital part in keeping the surroundings and temperature in check. Forests are responsible for cleaning the air and supplying oxygen for living beings. They also work well as noise absorbers. Furthermore, trees in the forest offer resources like firewood, honey, wood pulp, lac, herbs, and medicinal plants. These resources serve as raw materials for industries and food for animals. Forests act as barriers against strong winds and create moisture to maintain the temperature. Additionally, they prevent soil erosion and help preserve soil fertility. Deforestation has adverse effects on temperature and contributes to climate change. This can lead to reduced rainfall and ozone layer depletion. The rise in global temperatures may cause glaciers to melt, resulting in increased sea levels. Therefore, every person's primary role is to safeguard themselves and the environment.Benefits of NCERT Solutions for Class 7 Science Chapter 17 Forests Our Lifeline
NCERT solutions are highly regarded in the field of education in India, and they offer several advantages for students. Here are the benefits of using NCERT solutions for Class 7 Science or any other subject: 1. Aligned with Curriculum:-
- NCERT solutions are developed by experts in accordance with the curriculum prescribed by the National Council of Educational Research and Training.
- They are aligned with the latest educational standards and guidelines, ensuring that students cover the essential topics as per the syllabus.
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- The solutions provided in NCERT books are written in a clear and concise manner, making it easier for students to understand complex scientific concepts.
- Detailed explanations and step-by-step solutions help in clarifying doubts and enhancing conceptual clarity.
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- NCERT solutions cover all the important topics and subtopics included in each chapter of the textbook.
- The solutions provide a comprehensive overview of the subject matter, helping students grasp the entire spectrum of concepts.
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- NCERT solutions are designed to help students prepare for various examinations, including school exams and competitive exams.
- The solutions often include practice questions and exercises that are in line with the exam pattern, aiding in effective exam preparation.
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- NCERT is known for its commitment to providing quality educational content. The solutions are well-researched and written by experienced educators.
- The content is reliable and accurate, promoting a deeper understanding of scientific principles.
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- The language used in NCERT solutions is student-friendly and easy to understand.
- Complex scientific terms are explained in a simplified manner, making it accessible for students at the Class 7 level.
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- NCERT solutions often include exercises and questions for self-assessment.
- Students can use these questions to practise and evaluate their understanding of the concepts, which is crucial for reinforcing learning.
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- NCERT solutions may be complemented with additional learning resources such as diagrams, charts, and real-life examples, making the learning experience more engaging and holistic.
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