Odd One Out Questions
(i) Sunlight, Water, Plastic, Air
(ii) Composting, Recycling, Landfill, Vermicomposting
(iii) Carbon dioxide, Oxygen, Methane, Nitrogen
(iv) Recycling, Reducing, Reusing, Burning
CBSE Class 5 > Class 5 Notes > Science > Worksheet: Our Environment - 1
Worksheet: Our Environment - 1
Multiple Choice Questions (MCQs)
(i) What does the term 'environment' include?
(a) Only living things
(b) Only non-living things
(c) Both living and non-living things
(d) None of the above
(ii)Which type of waste can be broken down by natural processes?
(a) Non-biodegradable
(b) Biodegradable
(c) Industrial waste
(d) Inorganic waste
(iii)What is the primary cause of air pollution?
(a) Deforestation
(b) Soil erosion
(c) Industries and vehicles
(d) Overpopulation
(iv) Which gas is a major component of biogas?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Methane
(v) What effect does global warming have on ice caps?
(a) They expand
(b) They melt
(c) They become thicker
(d) They change colour
Fill in the Blanks
(i) Waste that does not rot and cannot be broken down by decomposers is called ________ waste.
(ii) The lowest layer of Earth's atmosphere is the ________.
(iii)______ is a technique that uses red earthworms to break down organic material into vermicompost.
(iv)______ pollution is caused by the loud noise of machines and vehicles.
(v) The process of managing waste by creating new products from old items is called ________.
True or False
(i) The environment only includes living things.
(ii) Biodegradable waste is harmful to the environment.
(iii) Recycling can help reduce environmental pollution.
(iv) Greenhouse gases do not include oxygen.
(v) Global warming is solely caused by natural processes.
(vi) Landfills are a sustainable method to manage waste.
(vii) Noise pollution only affects humans.
(viii) The increase in atmospheric carbon dioxide levels has no effect on ocean chemistry.
Match the Following
Real Life Application Questions
(i) How can the practice of recycling benefit our community in the long run?
(ii) What simple steps can you take at home to reduce air pollution?
Short Ans Questions
(i) What is the role of decomposers in the environment?
(ii) Why is it important to manage non-biodegradable waste?
(iii) What are the effects of global warming on the environment?
(iv) How does air pollution affect human health and the environment?
(v) Describe two ways individuals can contribute to reducing their environmental impact.
You can access the solutions to this worksheet here.
The document Worksheet: Our Environment - 1 is a part of the Class 5 Course Science Class 5.
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FAQs on Worksheet: Our Environment - 1
| 1. What are the main components of our environment for Class 5 CBSE? |  |
Ans. Environment comprises living things (plants, animals, humans) and non-living things (air, water, soil, sunlight). Together, these biotic and abiotic components form ecosystems where all elements interact and depend on each other for survival and balance in nature.
| 2. How do plants and animals depend on each other in the environment? | |
Ans. Plants produce oxygen and food through photosynthesis, which animals consume for survival. Animals disperse seeds, pollinate flowers, and provide nutrients to soil through decomposition. This interdependence creates food chains and food webs, maintaining ecological balance and environmental stability.
| 3. What role does soil play in our environment and why is it important? | |
Ans. Soil supports plant growth by providing essential nutrients, water retention, and anchorage for roots. It filters water, stores minerals, and hosts decomposers that break down dead matter. Healthy soil sustains agriculture, prevents erosion, and supports entire terrestrial ecosystems and biodiversity.
| 4. Why is protecting air and water quality crucial for environmental health? | |
Ans. Clean air enables respiration in all living organisms and maintains atmospheric balance. Pure water supports life, regulates temperature, and transports nutrients. Pollution of these resources harms ecosystems, causes diseases, reduces biodiversity, and threatens survival of plants, animals, and humans alike.
| 5. What simple actions can Class 5 students take to protect the environment daily? | |
Ans. Students can reduce plastic use, plant trees, conserve water and electricity, segregate waste, and avoid littering. Participating in community clean-ups, composting organic matter, and spreading environmental awareness strengthen conservation efforts. Small individual actions collectively create significant positive impact on environmental preservation and sustainability.
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Document Description: Worksheet: Our Environment - 1 for Class 5 2026 is part of Science Class 5 preparation. The notes and questions for Worksheet: Our Environment - 1 have been prepared according to the Class 5 exam syllabus. Information about Worksheet: Our Environment - 1 covers topics like and Worksheet: Our Environment - 1 Example, for Class 5 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Worksheet: Our Environment - 1.
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