This document discusses how human activity impacts groundwater and water systems. It explains that groundwater comes from rain and snow seeping into the ground and is stored underground in porous rocks and aquifers. Watersheds are areas of land where water drains, and they can be affected by natural events like storms as well as human pollution from sources, construction, and urban and agricultural runoff. The document also discusses how groundwater is impacted by overuse for agriculture and industry and pollution from fertilizers, landfills, and urban areas. Texas faces water issues like increasing demand, declining supply, and potential changes to water rights and habitats. The Clean Water Act regulates water pollution from industry and sets quality standards.
This is our group work in our science subject. We are assigned to make a power point presentation in order for us to understand and share our knowledge in the given chapter. We hope that you learned from the presentation the we have presented, thank you and good luck!
Check out our new watershed pledge for students! The Pledge will introduce your students to our watershed, nonpoint source watershed pollution, and actions they can take that prevent pollution.
This is our group work in our science subject. We are assigned to make a power point presentation in order for us to understand and share our knowledge in the given chapter. We hope that you learned from the presentation the we have presented, thank you and good luck!
Check out our new watershed pledge for students! The Pledge will introduce your students to our watershed, nonpoint source watershed pollution, and actions they can take that prevent pollution.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
1. How does human activity
change our water systems?
Human Activity
and Ground
Water
2. WHAT IS GROUNDWATER?
Water that is found underground
in the cracks and spaces in soil,
sand and rock.
Half of everyone in the United
States gets their water from
groundwater
Groundwater comes from rain,
snow, sleet, and hail that soaks
into the ground
Groundwater is stored in the
ground in materials like gravel
and sand
3. AQUIFERS
A body of porous rocks that allows water to saturate
and easily flow through
An underground “storehouse” of water
4. WHAT IS A WATERSHED?
A watershed is the area of land where all of the
water that is under it or drains off of it goes into the
same location
5. WHAT AFFECTS WATERSHEDS?
Natural Events:
Storms, fires and droughts can suddenly alter watershed
conditions
Human activity:
Point source pollution is pollution that can be traced to a
specific point such as a disposal site or leaking pipe.
Nonpoint source pollution occurs when pollutants are found in
water running off of areas such as parking lots or crop lands
Reduction of the amount of water flowing within a watershed
About 40 percent of the lakes in the United States are not clean
enough to be used by humans
6. HUMAN IMPACT ON GROUNDWATER
Overuse: groundwater is often withdrawn for
agricultural, municipal and industrial purposes.
Pollution: contaminants released to the ground that
work their way down into groundwater
Misuse of fertilizers or manure
Leakage from underground storage containers and
landfills
Run-off from urban areas
Construction sites
Parking lots
7. TEXAS WATER ISSUES
Rangelands are the major source of water for human use
Availability is directly related to the amount & intensity of
rainfall
Typically, below EPA standards for water quality
Traditionally managed for wildlife, livestock, and
environmental impact, but not water use
8. TEXAS WATER ISSUES CONTINUED
Water demand currently exceeds supply in many areas
Population is expected to double by 2050 - water use
will continue to increase
May cause changes in water law and private and public
property rights
9. TEXAS WATER ISSUES
CONTINUED
Sixteen regional citizen water planning groups have been
organized to implement planning and management of
water resources
Many endangered species require specific habitats that
are affected by such management
May impact wetlands and riparian zones which serve as
filter strips for water entering lakes and streams
10. HOW DOES NATURE CLEAN
WATER?
When water soaks into the ground it moves through
soil and rock.
The tightly packed particles that make up the soil
filter out impurities.
Certain ecosystems, such as wetlands, are
especially good natural filters, absorbing excess
nutrients such as nitrogen or phosphorous from the
water.
11. HOW HAVE WE PROTECTED OUR
WATER?
The Clean Water Act (CWA):
Regulates discharges of pollutants into waters
Sets wastewater standards for industry
Sets water quality standards for all contaminants in
surface waters
