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Question 1. What made Ravi sad while going to school after vacation? Answer: After the long vacation while going to school Ravi noticed that the only play-ground next to the school is dug up. He was told that a multi storey building would be constructed there.
This made him sad as the big playground with grass, marigolds and butterflies would be gone forever. He shared his feelings with his classmates. Question 2. What all are the part of our environment?
Answer: Our Surroundings constitute environment. Buildings furniture like tables, chairs, open field, road, garbage etc. Some things like mountains, rivers, trees are created by nature. Others like chair, table, roads and clothes are made by man. Question 4.
How do human beings modify the environment? Answer: Environment provides the basic life support system like air, water, food and land. The man made things like car pollute the air, factories build on land, containers for food and water are the examples of modification of environment. Question 5.
Distinguish between biotic and abiotic environments. Answer: Biotic Environment. Question 6. Explain with examples the different components of environment. Answer: Major Components of environment are � Man-made, natural and Human beings. Major Components of the Environment: Natural Components:. Question 7. What Class 6 Maths Chapter 5 Question Answer Quant is environment?
Answer: The surrounding in which we live forms environment. It is the basic life Class 9 Maths Chapter 8 Question Answer File support system having natural and man-made components. What comprises natural environment? Answer: Land, air, water, plants and animals are all the part of natural environment. Answer: Biosphere: Plants and animals found in the narrow strip at the junction of Class 5 Maths Chapter 5 Question Answer Quality lithosphere, atmosphere and hydrosphere together make biosphere.
Answer: Ecosystem: An ecosystem is formed by the interaction of all living organisms with one another and with the physical and chemical factors of the environment in which they live. All are linked by transfer of energy and material.
They are interdependent. Compare and contrast the climatic conditions of Kerala and Rajasthan. Answer: Kerala, a southern state of India gets ample rainfall. It has lush green vegetation and coconut plantations. Rajasthan, on the other hand, gets very less rainfall. It has thorny bushes, kikar and babul as vegetation. Question 3. Name some animals found in deserts.
Answer: Camels, snakes, lizards, insects are found in deserts. Why do the animals and vegetation vary from place to place? Answer: Animals and vegetation vary from place to place because. What forms the ecosystem? Give some examples of ecosystems. Answer: The relationship between the living organisms and their surroundings form the ecosystem.
Rain forest, grassland, deserts, mountains, lake, river, ocean and pond are some of the examples of ecosystems. Do you think the park in which Ravi and his friends played formed an ecosystem? Answer: Yes. Define barter system. Answer: Barter system is the exchange of goods without the use of money. What has brought a change in interaction between humans and their surroundings? Answer: Human being modifies nature according to their need.
Early humans adapted themselves to their natural surroundings. They led a simple life fulfilling their needs from nature. With changes in needs new methods and technologies were invented. Settled life brought agriculture domestication of animals. Invention of wheel, surplus food led to development of trade and commerce. Barter system emerged. Industrial revolution, changes in transportation increased production.
Growth in communication system made life easier and speedy. Humans learned new ways to use and change the surroundings.
What is important for a harmonious life? Answer: Certain things are used in a certain way like watermelon in summer or roasted peanuts in winter. We need a balance between natural and human environment.
Human beings must use their natural environment in a sustainable way to maintain the balance. Why did Nurie invited Ravi to her place? Answer: Ravi was upset at losing his playground to building construction. Nurie invited him to her home in Mizoram in the lush green surroundings.
Fill in the blanks with appropriate words: 1. Hydrosphere is a part of ���������� 2. Two main constituents of environment are ���������� and ������ 3. Answer: 1. Lithosphere 4. Human beings. Write whether the given statements are true or false: 1. Landforms are found only over continents. Trade in which goods are exchanged without the use of money is called barter system. Gravitational force of the earth holds the atmosphere around it. No life can exist in biosphere. Abiotic environment consists of living organism.
False 2. True 3. True 4. False 5. Match the contents of Column A with that of Column B. Which one of the following is a basic life support system? Which one of the following is created by nature? The domain of water is referred to a hydrosphere b lithosphere c atmosphere d biosphere Answer: a hydrosphere.
What do plant and animal kingdom make together? Which one of the fallowing animals is called the ship of the desert? When is the World Environment Day celebrated every year? Who interacts with the environment and modify it according to their needs? Which one of the following is not a threat to environment? Why is our environment changing? Answer: It is all because of our needs. They are increasing day by day. We are therefore modifying and at times even destroying our natural surroundings.
Answer: Biotic Environment The world of living organisms is called biotic environment.
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