This is PPT was presented by Mr. Girishwar of 9th std, JNV Lepakshi, to the INOVIT-2015 organised by Vellore Institute of Technology, Vellore, Tamilnadu on 24-25th Jan 2015.
The PPT Brief About the Ozone Layer?,
Where it is located?,
Why It is Important?
Why it is depleting?,
What are the effects of the Ozone Depletion?,
What to be done to save the ozone layer ?.
This is PPT was presented by Mr. Girishwar of 9th std, JNV Lepakshi, to the INOVIT-2015 organised by Vellore Institute of Technology, Vellore, Tamilnadu on 24-25th Jan 2015.
The PPT Brief About the Ozone Layer?,
Where it is located?,
Why It is Important?
Why it is depleting?,
What are the effects of the Ozone Depletion?,
What to be done to save the ozone layer ?.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
3. Structure of the Atmosphere
• It is a mixture of solids, liquids
and gases held in place by the
Earth’s gravity
• Close to the surface (first 15 km
the troposphere), the
composition is fairly constant. It
changes at higher altitudes
• Certain gases are characteristic
of different altitudes *
• A layer of ozone occurs at an
altitude between 10 – 15 km
(this is called the stratosphere)
Altitude
(km)
Most
Significant
Gas
10 - 50
ozone
100 - 200
nitrogen
200 - 1100
oxygen
1100 - 3500
helium
> 3500
hydrogen
5. The Role of Ozone
• Ozone (O3) is produced by the action of sunlight on O2
molecules
• There are higher concentrations around the equator due
to higher levels of sunlight, but it concentrates near the
poles due to transportation by winds
• Ozone is a greenhouse gas but also absorbs incoming
(and some outgoing) UV light
• Ozone production and destruction is at equilibrium (but
it is destroyed by anthropogenic pollutants (e.g.
chlorofluorocarbons (CFCs) and NOx)
• Without the ozone layer, incoming UV radiation from the
sun would destroy all life
6. The Effect of CFCs
• CFCs are stable industrial products of byproducts that contain chlorine, fluorine or
bromine (halogens)
• They can persist for many years in the
troposphere, however when they travel to the
stratosphere, UV light breaks them down and
release their halogen atoms
• The halogens catalyse the breakdown of ozone
• A hole in the ozone layer was first reported over
Antarctica by the British Antarctic Survey in 1985
• The hole is seasonal – ozone thins during the
Antarctic winter, since colder temperatures
result in the formation of clouds of ice particles
provide catalytic surfaces to accelerate ozone
breakdown
7. •
The Effects of Increased UV(B)
Light
Humans and other animals
– Sunburn, skin cancer, immune deficiencies, eye damage and
cataracts
– Effects may be acute or chronic (chronic effects are often
irreversible)
– It may have effects on the success of vaccinations
– Reduction of fish stocks
– Fall in frog populations
– Due to the Antarctic Ozone hole Australia tried to increase
public awareness, but has seen an increase in skin cancer over
the last decade
• Plants
– Reduced yield (although GM is producing UV(B) tolerant
varieties)
– Reduction in natural plant productivity, particularly
phytoplankton
8. Regulation
• Reduction in the use of CFCs
– They have been discontinued as propellants in
aerosol cans
– They are being phased out as refrigerants
– There are now programmes for the collection of old
fridges and the recycling of the CFCs they contain
• Reduction in the use of methyl bromide
– Used as a soil insecticide, but phased out in Europe
and the US in 2005. Still used in many countries
9. Regulation
• There has been successful international cooperation,
largely organised by the United Nations Environment
Programme (UNEP) – Montreal Protocol (1987)
• Europe banned the use of CFCs in 2000
• Developing countries are phasing out their use, but this
will take considerably longer
• A total worldwide ban should be in place by 2030
• However CFCs are very persistent in the troposphere
and will continue to have effects well into the future
• Some of the chemicals used to replace CFCs (e.g.
HCFCs) are greenhouse gases
10. Questions
1.
2.
3.
4.
Describe the composition of the atmosphere
Describe the role of ozone
Explain the effect of ozone depleting substances
State the effects of increased UV(B) radiation on
humans, animals and plants
5. Describe the efforts of international
organisations in reducing the effects of ozone
depleting substances and evaluate their
effectiveness