An operating system (OS) is a set of computer program that manages the hardware and software resources of a computer. At the foundation of all system software‚ the OS performs basic tasks such as controlling and allocating memory‚ prioritizing system requests‚ controlling input and output devices‚ facilitating networking‚ and managing files. The computerized system may be a computer‚ a workstation‚ a server‚ a PC‚ a notebook‚ a smartphone‚ a road navigation device or another system with "intelligence"
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IMPORTANT VSAQ’S – Ist Year Chemistry(for N-TARGET) 1. What is Heisenburg uncertainity principle? 2. Significance of Ѱ & Ѱ2. 3. Difference B/w Orbit & Orbital. 4. What is shielding effect? How does it effect I.P Values. 5. What is diagonal relationship? 6. What is Lanthanide contraction? Give its consequences. 7. What types of bonds are present in NH4Cl? 8. What is dipole moment? 9. Why H2O has high B.P than HF? 10. What are Co-Ordination numbers of NaCl & CsCl. 11. Define Co-Ordinate
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audience that the "ozone hole" is not caused by man and therefore requires no policy against CFC’s. Central idea: The ozone layer/"hole" is caused by fluct. in the environment and CFC’s are little if any of the cause of ozone depletion. CFC’s are very heavy‚ they stay close to the ground and do not affect the stratosphere. Volcano’s put out approx 10X more times chlorine than man produces. Ozone Center of WA states: "The 1991 volcanic eruption of Mount Pinatubo led to temporary severe ozone depletion but
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citizens to sue parties violating the standards. * Clean Air Act of 1990- congressional legislation that strengthened regulations pertaining to air quality standards‚ auto emissions‚ toxic air pollution‚ acid deposition‚ and depletion of the ozone layer‚ while also introducing market-based incentives to reduce pollution. * Cold front- the boundary where a mass of cold air displaces a mass of warmer air. * Convective circulation- a circular current driven by temperature differences *
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gases. The atmosphere is divided into four layers. The atmosphere also has a layer of ozone. The layers of the atmosphere listed from lowest altitude to highest altitude are the troposphere‚ stratosphere‚ mesosphere and thermosphere. The troposphere extends from the Earths surface up to about 14 kilometers in altitude. All human activities occur in the troposphere. The troposphere is the layer where all weather we experience takes place. It is a thin layer of the atmosphere. The warmest part of the
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The Montreal Protocol on Substances that Deplete the Ozone Layer was adopted in 1987 as an international treaty to eliminate the production and consumption of ozone-depleting chemicals. A subsequent amendment created the Multilateral Fund for the Implementation of the Montreal Protocol‚ becoming the first of the multilateral environmental agreements to establish a financial mechanism for implementation. The World Bank has developed a strong partnership with the Multilateral Fund (MLF) since its
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Introduction: When air gets polluted with dust‚ smoke‚ motor vehicles‚ mills and factories etc. is called air pollution. We know that air is an important element of our environment. But it is a matter of great regret that it is being polluted day by day in different reasons. Causes of Air pollution: There are different kinds of reasons of air pollution. The causes of air pollution are described below. 1. Using poison in agriculture: In agricultural sectors‚ farmers often use insecticides
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resources in our everyday life. People are unaware of the damage that’s been done in our environment due to the deficient of recycling‚ we should recycle for various reasons; landfills are dangerous to our health‚ recycling saves money and the ozone layer is deteriorating. To begin with‚ landfills are treacherous to both our health and environment. Recycling can reduce the chances of trash being thrown into landfills and lessen both air and water pollution. Not all the waste that’s thrown away
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ultraviolet radiation that strikes the sun is form the sun. The action of ultraviolet rays on oxygen in our atmosphere creates layer about 9 to 19miles above sea level. This ozone layer absorbs almost all of the shorter waves of UV rays that enter the earths atmosphere‚ and prevents it from doing any severe damage on the living organisms on earth. The fast depleting ozone player is a rising concern. UV radiation is known to be one of the leading causes of Skin cancer. UV rays from the sun and
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Ecosystem - introduction - pollution - strategies to solve problems related to pollution | 3 - 11 | 2 | 9.2 The Greenhouse Effect and the Thinning of the Ozone Layer - The greenhouse effect - The thinning of the ozone layer - Impact of global warming and the thinning of the ozone layer on the Ecosystem | 12- 17 | 3 | 9.3 the Importance of Proper Management of Development Activities and the Ecosystem - The need for development and the effects
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