E-commerce refers to the buying and selling of goods and services over computer networks like the Internet. It uses technologies like mobile commerce, electronic funds transfer, and online transaction processing. Modern e-commerce often uses the World Wide Web for transactions but may also use email. E-commerce has changed the importance of time in business and increased transparency, allowing consumers to easily research and purchase products. It has also impacted employee loyalty as competition in online markets increases the importance of professional skills. Companies engage in e-commerce through various distribution channels like pure-play online retailers, bricks-and-clicks retailers, and click-to-brick retailers that later open physical stores.

1. E-Commerce
 Electronic commerce, commonly known as e-
commerce or e-commerce, is trading in products or
services using computer networks, such as the
Internet.
 Electronic commerce draws on technologies such
as mobile commerce, electronic funds transfer, supply
chain management, Internet marketing, online
transaction processing, electronic data
interchange (EDI), inventory management systems,
and automated data collection systems.

2. Social Impacts of E-Commerce
 Modern electronic commerce typically uses the World
Wide Web for at least one part of the transaction's life
cycle, although it may also use other technologies such
as e-mail.
1. The e-commerce has changed the relative importance
of time, but as the pillars of indicator of the country’s
economic state that the importance of time should not
be ignored.

3. Social Impacts of E-Commerce
 Nowadays, the transparent and real-time information
protects the rights of consumers, because the
consumers can use internet to pick out the portfolio to
the benefit of themselves.
 The new economy led by the e-commerce change
humanistic spirit as well, but above all, is the employee
loyalty. Due to the market with competition, the
employee’s level of professionalism becomes the
crucial for enterprise in the niche market.

4. Distribution Channels of E-
Commerce
 Pure-click or pure-play companies are those that have
launched a website without any previous existence as a
firm.
 Bricks-and-clicks companies are those existing
companies that have added an online site for e-
commerce.
 Click-to-brick online retailers that later open physical
locations to supplement their online efforts.

5. Water pollution is the contamination of
water bodies
(e.g. lakes, rivers, oceans, aquifers and groundw
ater). This form ofenvironmental
degradation occurs when pollutants are directly
or indirectly discharged into water bodies
without adequate treatment to remove harmful
compounds

6. Sources
 Point sources
 Point source water pollution refers to contaminants that enter a
waterway from a single, identifiable source, such as a pipe or ditch.
Examples of sources in this category include discharges from a sewage
treatment plant, a factory, or a city storm drain. The U.S. Clean Water
Act (CWA) defines point source
 Nonpoint sources
 Nonpoint source pollution refers to diffuse contamination that does
not originate from a single discrete source.
 Agriculture

7. Causes
 Disinfection by-products found in
chemically disinfected drinking water, such as chloroform
 Food processing waste, which can include oxygen-demanding
substances, fats and grease
 Insecticides and herbicides, a huge range of organohalides and
other chemical compounds
 Petroleum hydrocarbons, including fuels (gasoline, diesel fuel,
jet fuels, and fuel oil) and lubricants (motor oil), and
fuel combustionbyproducts, from storm water runoff[17]
 Volatile organic compounds, such as industrial solvents, from
improper storage.
 Chlorinated solvents, which are dense non-aqueous phase
liquids, may fall to the bottom of reservoirs, since they don't mix
well with water and are denser.

8. Test
 Sampling
 Sampling of water for physical or chemical testing can
be done by several methods, depending on the
accuracy needed and the characteristics of the
contaminant
 Physical testing
 Common physical tests of water include temperature,
solids concentrations

9. Test
 Chemical testing
Water samples may be examined using the principles
of analytical chemistry. Many published test methods
are available for both organic and inorganic
compounds.
 Biological testing
Involves the use of plant, animal, and/or microbial
indicators to monitor the health of an aquatic
ecosystem

10. Solution
 Construction site storm water
 Point source waste water treatment
 Agricultural waste water
 Industrial waste water
 Domestic sewage

11. In the present globalized world, we are living in the
era of advanced technology. Every part of our daily
life is related to technology in one or other way

12.  When compared with old days, we are having better facilities
and even better luxuries with the help of increased technology.
 The development of technology is not confined to any one
sector and all the industries and different sectors of society are
developing new technologies according to their needs and
requirements.

13. Positive Effects of Technology
 There are so many advantages with improved technology in
our daily life.
 With the help of mobile technology we are able to talk to
our friends and relatives who are living far from us.
 With the help of internet, we are able to learn new things
and online courses etc.
 With the help of aviation technology we are able to reach
distant places within hours which took years of time to
reach in old days.
 We are using the all natural resources available for making
our life better.

14. Negative Effects Of Technology On
Our Lives
 Instead of taking care personally we are sending sms or
giving a call on important occasions which were attended
personally in olden days.
 With the use of same internet children are getting
addicted to online games and their physical activities and
exercises are becoming considerably less.
 The same social networks are creating rivalry between
best friends and couples are getting divorced.
 The same aviation technology is giving health problems
for their workers and creating serious environmental
threats.
 With the heavy usage of fertilizers soil is losing its natural
fertility and several varieties of plants became extinct.

15. Conclusion
 Technology is like a coin which has both positive and
negative sides. We are the deciders and we have to
choose how to use it. The usage of technology for over
exploitation of resources should be always avoided. If
we use it for positive things, it will have positive effect
of our lives and vice versa. Nobody would oppose the
development of technologies in any sector but the
developments should be in a positive way and they
should not have any negative impact on present or
future generations.