NCERT Solutions for Class 3 EVS Chapter 24 Web of Life all question answers in Hindi and English Medium updated for CBSE session 2022-2023. Get here extra important question answers based on Class 3 EVS with MCQ and answer free to download. Extra question are useful for school exams as well as school tests. All the contents on Tiwari Academy are free to use.
NCERT Solutions for Class 3 EVS Chapter 24
By now, you must have read almost the complete book. You have read about trees, water, houses, animals, vehicles and many other things. You must have thought about them as well. Can you tell, why did we try to know and think about all these things?
Our survival is dependent on all the things of environment like trees, water, houses, animals, vehicles, etc. Hence, it is important that we should know and think of all these things surrounding us.
Let’s see, with what other things can we join the house to. Think – What is a house made of?
1. Wood – Which comes from trees.
2. Bricks – Which are made from water and clay.
3. Clay – We get from the soil, and
4. Water – we get it from rivers, ponds, wells or rain.
What can you understand from this web?
The web shows us that everything is important for us. We’re all inter-dependent on each other for our survival.
Share your web with your friends. Also, have a look at the web made by your friends. Are they all alike? Discuss with your friends.
Yes, all the webs look similar.
Class 3 EVS Chapter 24 Extra Questions Set 1
The web of life includes:
Plants and animals are _________.
We get water from various sources like:
We get ______ from plants and animals
Which out of the following are non-living things?
Class 3 EVS Chapter 24 Extra Questions Set 2
We get wood from trees which we use to make ______.
Sources of fibre in nature are:
Clay is obtained from:
The natural things which an animal needs to live are:
What are our basic needs?
A necessity is something that we must have in order to live properly or do something. And our basic needs are that we must have food, water, air, and shelter to survive. If any one of these basic needs is not met, then humans cannot survive. We all need food to live. We get food from plants and animals. We also need clothes to wear and houses for shelter.
What is called the web of life?
All living things and non – living things are linked to one another and depend on one another. This is called web of life.
Write three things needed by the living beings from nature.
(i) Plant: air, water and sunlight
(ii) Bird: air, water, food
(iii) Man: clothes, air, water
What are non – living things?
Things which do not grow, move from one place to other, breathe, need food and give birth to young ones are called non – living things. Eg: Air, sunlight, stone, pencil. etc.
Class 3 EVS Chapter 24 Important Question and Answers
How are living things dependent on each other?
Living things depend on each other directly or indirectly for fulfilling their basic requirements. Like plants give us oxygen to breathe and animals and humans give out carbon dioxide which is required by the plants to survive. Human beings and animals depend upon the plants for their foods. The food chain begins from the plants only. Human beings also depend upon animals for their food. So all the living things are dependent on each other for survival. We also get so many things from plants and animals
How do living things depend upon non- living things?
We depend on each other and need the non-living things in our homes, like food, water, air, and furniture. Living things need nonliving things to survive. Without food, water, and air, living things die. Plants use water from the soil, carbon dioxide from the air, and energy from sunlight to make their own food. Their environment consists of physical factors—such as soil, air, and temperature—and also of other organisms. All living things depend on their environment to supply them with what they need, including food, water, and shelter.
Why is soil important?
Soil is very important as:
• It provides plants with grip for their roots and holds the necessary nutrients for plants to grow
• it filters the rainwater and regulates the discharge of excess rainwater
• It prevents flooding
• it acts as a water filter and a growing medium that provides habitat for organisms,
• it provides plants with essential minerals and nutrients.
• It provides air for gaseous exchange between roots and atmosphere.
How do we depend on the sun?
Sun is important for us-
• Humans need sunlight for our bodies to produce some vitamins
• It drives weather, ocean currents, seasons, and climate
• It makes plant life possible through photosynthesis.
• Without the sun’s heat and light, life on Earth would not exist.
How are bricks made?
Bricks are made by shaping a plastic mass of clay and water, which is then hardened by drying and firing. Bricks are burned in a kiln which makes them durable. Sandy and loamy soils are considered good soils for making bricks.
How do we get oxygen to breathe?
Oxygen is essential for life. Normal air contains 21% oxygen, which we breathe into our lungs so it can enter our bloodstream to help with the proper functioning of our tissues and organs. We also breathe as a way to push out carbon dioxide gas, which is a type of waste our bodies produce.
How do we get oxygen from plants?
Plants make their food in a process called photosynthesis. Once they have water and carbon dioxide, they can use energy from sunlight to make their food. The leftovers from making the plant food is another gas called oxygen. This oxygen is released from the leaves into the air.
What are the things that Chapter 24th of EVS class 3rd for teaching by asking several questions?
After reading the entire chapter we understood how most of the things available near us are connected to each other and all of them play an important role in completing nature providing something that helps all the others to sustain their lives.
How do you think students of class 3 EVS could find out all the answers to questions that have been asked in Chapter 24?
There are certain hints are given in the chapter and questions that are given there are pretty simple and easy questions that could be answered easily if one read the chapter and even that is the reason the questions are being asked so that students of class 3 EVS can brainstorm and find out the answers.
How important do you think chapter 24 is for class 3 EVS students?
This chapter is fairly important as I cannot say with the perspective of examination but with the point that environmental science is one of the subjects to gain knowledge so that they can apply it in their daily lives.