Class 3 Exam > Class 3 Notes > EVS for Class 3 > Worksheet Solutions: Web of Life - 1
Worksheet Solutions: Web of Life - 1 | EVS for Class 3 PDF Download
Q1: True or False.
(i) Earth has an imaginary line called a globe.
Ans: False
(ii) Water is essential for us.
Ans: True
(iii) Saturn is a dwarf planet.
Ans: True
(iv) Moon gives us light.
Ans: True
(v) Biotic components include soil, wind, and minerals.
Ans: False
Q2: Fill in the Blanks.
(i) Stars, the moon, earth, planets are _____ bodies.
Ans. Heavenly
(ii) Cow gives us ____.
Ans: milk
(iii) We live in a ____.
Ans: house
(iv) Revolution causes changes in _____.
Ans: Season
(v) The fundamental building blocks of the environment include biotic and ________ components.
Ans: abiotic
Q3: Answer the following Questions.
(i) Where do we get wood from?
Ans: We get wood from the trees.
(ii) Describe the movement of the earth?
Ans: The earth moves all the time and has two types of movements rotation and revolution.
(iii) Where do we get water from?
Ans: We get water from rivers, ponds, wells or rain.
(iv) What is the moon?
Ans: Moon is a natural satellite.
(v) Mention few things that are essential for human life.
Ans: Few things that are essential for human life are plants, animals, water, sunlight, houses, etc
(vi) Why does it seem to us that the moon is changing its shape?
Ans: When moon moves around earth its different parts are lighted up by the sun. We see only the lighted part and so it seems that moon is changing its shape.
(vii) Which things are used to make bricks?
Ans: Water and clay are used to make bricks.
(viii) What are craters?
Ans: Big holes on the moon are called craters.
(ix) What is a rotation of the earth?
Ans: The earth spins on its own axis, is called as rotation. It spins around north pole to south pole called as axis.
(x) What is the colour of grass?
Ans: Grass is green in colour.
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FAQs on Worksheet Solutions: Web of Life - 1 - EVS for Class 3
| 1. What is the web of life? |  |
Ans. The web of life refers to the interconnectedness of all living organisms on Earth. It represents the complex relationships and dependencies between different species, highlighting how they rely on each other for survival and a balanced ecosystem.
| 2. How does the web of life function? | |
Ans. The web of life functions through various ecological interactions such as predation, competition, and symbiosis. For example, predators help control the population of prey species, while symbiotic relationships like mutualism and parasitism contribute to the overall balance of the ecosystem.
| 3. What happens if a species becomes extinct in the web of life? | |
Ans. When a species becomes extinct, it can disrupt the web of life. Extinction can lead to cascading effects, affecting other species that rely on the extinct species for food or habitat. This loss of biodiversity can ultimately impact the stability and function of the entire ecosystem.
| 4. How does human activity impact the web of life? | |
Ans. Human activity can have significant impacts on the web of life. Activities such as deforestation, pollution, and climate change can disrupt ecosystems and cause the decline or extinction of species. This disruption can create imbalances within the web of life and have negative consequences for the overall health of the planet.
| 5. How can we protect and preserve the web of life? | |
Ans. To protect and preserve the web of life, it is crucial to promote conservation efforts and sustainable practices. This includes preserving natural habitats, reducing pollution and waste, promoting biodiversity, and implementing measures to mitigate climate change. Additionally, raising awareness and understanding about the importance of the web of life can help foster a sense of responsibility and encourage individuals and communities to take action.
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Nov 23, 2024 Last updated |
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