Env.science i unit
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Water is a colorless, odorless, and tasteless chemical substance with the chemical formula H2O. It exists in forms such as precipitation like rain and snowfall, and water vapor. Water moves through the processes of evaporation, transpiration, condensation, precipitation, and runoff. Sources of drinking water include surface sources like lakes, rivers, and oceans, and subsurface sources like springs and wells. Water quality is analyzed based on physical characteristics like turbidity and temperature, chemical characteristics like acidity and hardness, and bacteriological characteristics which indicate pollution levels. Water pollution is the contamination of pure water, causing diseases when consumed. Treatment processes like coagulation, sedimentation, filtration, and disinfection are used to remove
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Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
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Any substance (other than food) that is used to prevent, diagnose, treat, or relieve symptoms of a
disease or abnormal condition
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LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
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Walmart Business+ and Spark Good for Nonprofits.pdf
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
Natural birth techniques - Mrs.Akanksha Trivedi Rama University
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Env.science i unit
- 1. Unit-I Water
- 3. • Water: It is a transparent, tasteless, odorless and colourless chemical substance. • Chemical Formula is H2O • Forms of Water: Precipitation in the form of rain. • Snow fall • Water vapours. • Movement of water- Evaporation, transpiration (Evapotranspiration), Condensation, precipitation and Runoff.
- 4. Sources of drinking water: Sources Surface Sub-Surface Surface: Ponds and lakes, streams and rivers, storage reservoirs and oceans Subsurface: Springs, Infiltration well and tube wells.
- 5. Water Quality: The water quality is analyzed by testing it’s physical, chemical and bacteriological characteristics. • Physical Characteristics: Turbidity, Colour, Taste and Adour, Temperature. • Chemical Characteristics: Acidity, Alkalinity, Hardness, Chlorides, Sulphates, • Iron, Solids and Nitrates. • Bacteriological Characteristics: Very important – indicates degree of pollution. • Pathogenic organisms cause water borne diseases.
- 6. Water Pollution: Contamination of pure water which imparts objectionable odour and taste to pure water. • Causes: • Human Activities: Washing of clothes, vehicles, disposal of waste water in to natural streams, dumping of solid wastes into water bodies etc. • Natural Cause: Rain fall . • Effects: • Disturbance in ecosystem: Ecosystem is very sensitive to pollution, small disturbance causes complete destruction of the ecosystem. • Diseases: Consumption of polluted water results in water borne diseases like Typhoid, Cholera, hepatitis etc.
- 7. Water Treatment: • Water treatment is necessary to remove the contaminants or reduce them. • It includes- • Collection • Screening and straining • Chemical addition • Coagulation- Coagulant is added, increases the size of impurities, increase in weight of the particles results in settlement of impurities. • Sedimentation-Settlement of fine particles. • Filtration- Removes the particulate matter. • Disinfection-Kills the bacteria and viruses., Commonly chlorine is used. • Storage.
- 8. Indian Standards for Drinking Water