Unit 12. human impact in ecosystems
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This document discusses human impact on ecosystems and the environment. It notes that in nature, water, energy, and biomass cycles continuously recycle materials, but human activities like overexploitation of land and pollution have disrupted these natural cycles. Some key human impacts discussed are climate change, desertification and drought caused by overgrazing and deforestation, and loss of biodiversity. The document emphasizes the importance of reducing waste through recycling, which has benefits like preserving resources, reducing pollution, and saving energy.
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Impact of human activities on EnvironmentHamzah Meraj, Faculty of Architecture, Jamia Millia Islamia, New delhi
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This document contains a student paper on the topic of environmental protection. It discusses several key points:
1) It defines the environment as everything that makes up our surroundings and affects our ability to live on Earth, including air, water, plants, and animals.
2) It notes that scientists have found that human activities like air pollution, deforestation, and acid rain are dangerous to both the Earth and ourselves.
3) It discusses the major types of environmental pollution like air, water, and land pollution and provides examples of each. Control measures are also outlined.
4) Suggestions are provided for how individuals can help save the environment through actions like conserving energy and water, recycling
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This document discusses public green spaces and environmental issues. It defines public green spaces as a variety of natural areas found in both urban and rural settings like parks and gardens. These spaces provide ecological and environmental benefits. The document then outlines several major problems facing the environment like overpopulation, climate change, loss of biodiversity, water scarcity, pollution, and deforestation. Finally, it recommends ways to protect the environment such as using renewable energy, avoiding plastic, planting trees, and educating others about sustainability.
Similar to Unit 12. human impact in ecosystems (20)
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Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
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Chapter 5
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Chapter 6
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Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
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إضغ بين إيديكم من أقوى الملازم التي صممتها
ملزمة تشريح الجهاز الهيكلي (نظري 3)
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تتميز هذهِ الملزمة بعِدة مُميزات :
1- مُترجمة ترجمة تُناسب جميع المستويات
2- تحتوي على 78 رسم توضيحي لكل كلمة موجودة بالملزمة (لكل كلمة !!!!)
#فهم_ماكو_درخ
3- دقة الكتابة والصور عالية جداً جداً جداً
4- هُنالك بعض المعلومات تم توضيحها بشكل تفصيلي جداً (تُعتبر لدى الطالب أو الطالبة بإنها معلومات مُبهمة ومع ذلك تم توضيح هذهِ المعلومات المُبهمة بشكل تفصيلي جداً
5- الملزمة تشرح نفسها ب نفسها بس تكلك تعال اقراني
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واخيراً هذهِ الملزمة حلالٌ عليكم وإتمنى منكم إن تدعولي بالخير والصحة والعافية فقط
كل التوفيق زملائي وزميلاتي ، زميلكم محمد الذهبي 💊💊
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Unit 12. human impact in ecosystems
- 1. UNIT 10. Human impact in Ecosystems
- 3. In nature all things are recycled
- 5. Humans change everything badly
- 6. How?
- 7. Overexploitation Land occupation Pollution What have we done? Human impact on the environment
- 8. Research: Human impact on the environment Discuss you understand these terms
- 13. Effects of Climate Change
- 14. Effects of Climate Change
- 15. Effects of Climate Change http://www.epa.gov/climatechange/kids/
- 17. • Desertification is a complex process involving multiple natural and human-related causes. In desertification, the productive potential of arid and semi-arid lands falls by 10% or more, and topsoil is lost or degraded. – Desertification results mainly from a combination of natural climate changes causing prolonged drought and unsustainable human activities, including overgrazing and deforestation. Overgrazing on marginal lands (top) can extend desert zones (lower)
- 19. Biodiversity is the degree of variation of life forms within a given species, ecosystem, biome, or an entire planet. Biodiversity is a measure of the health of ecosystems. Biodiversity is in part a function of climate.
- 23. If anything in your dustbin can be reused by somebody else, recycled or repaired it should not be there!
- 24. Waste is Costly The earth is a closed system. Matter amoung keeps constance. There are no losses. • Any nutrients and resources being taken out of the system (and buried in a landfill, or burnt) are resources lost to us. •
- 25. Examples…. To produce one ton of paper, 100 tons of water are used. For every litre of beer, 10 litres of water have been used in the fermenting process. Producing one cellphone requires 75 kg of resources. A toothbrush requires 1,5 kg of resources – coal, oil and water – for its production
- 26. Recycling…
- 27. Benefits of recycling • reduces the amount of waste going into landfill sites, saving airspace; • creates jobs and money for schools and organisations • reduces pollution and litter; • saves raw materials needed to make new products • reduces the need to import expensive raw materials
- 28. Benefits of recycling • slows down the use of the world’s non-renewable (oil, coal and iron) and renewable resources (trees) • reduces energy costs in manufacturing of containers, packaging, etc. • saves water (used in packaging and product manufacture). Recycling paper uses 50% less water than paper that is made from wood pulp.
- 30. 1) Why can we say Nature is continuously recycling? 2) Which are the main points to be considered in human impact on the environment? 3) Write five actions to make a contribution to solve global warming 4) Describe in your owm words, the human contribution to the desertification 5) Give three reason to practise the recycling that you can do in your diary life