advantages and disadvantages of air pollution wikipedia

Air pollution is the pollution of the air. It can affect people and other living things.

Many of the world's large cities today have bad air quality.Even 2,000 years ago, the Romans were complaining about the bad air in their cities. At that time, the air was thick with smoke from fires and the smell of sewers.Air pollution has been a danger to human health and Earth's many ecosystems for a long time.It also kills asthmatic people.

Introduction

Before the introduction of air quality re ....etc

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digital clock using 8051 advantages and disadvantages

Digital clock displays the time using numbers. This circuit is used in many applications like cars, railway stations, houses, offices, etc. in order to provide accurate time and date. In this type of applications, normally we use RTC (Real Time Clock) ICs to display the time and date accurately. This circuit displays the time on LCD. For this clock, we can set the time at any instant. Here the clock works in 24 hour mode and the RTC chip is configured by programming 8051 controller.

Circui ....etc

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Having a water alarm installed in your home can potentially save you thousands of dollars in repairs. Water alarms have many benefits. Since they are relatively inexpensive, it's a good idea for any homeowner to install one, even if it's just a simple passive system. Here are a few of the advantages of having a water alarm in your home.

1. Mold and Mildew

It's not uncommon to find minor mold and mildew problems in high moisture areas. Bathrooms, kitchens and laundry rooms are all susceptible. Mold can lead to health problems, and mildew can c ....etc

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WHAT ARE THE SIDE EFFECTS RELATED TO DIGITAL JEWELLERY ....etc

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Advertising is a form of marketing communication used to promote or sell something, usually a business's product or service. Advertising by a government in favor of its own policies is often called propaganda.

In Latin, ad vertere means to turn toward. The purpose of advertising may also be to reassure employees or shareholders that a company is viable or successful. Advertising messages are usually paid for by sponsors and viewed via various old media; including mass media such as newspapers, magazines, Television, Radio, outdoor adver ....etc

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Surf Excel, launched in 1948 under the brand name Surf in Pakistan & in 1959 launched in India as a first detergent powder. Initially, the brand was positioned on the clean proposition of washes whitest . However, with the emergence of numerous local detergent manufacturers and the entry of other global brands, Surf Excel underwent various changes in its Brand Communication. This is in line with the global communication platform of Dirt Is Good, which is a communication strategy of Unilever for its premium detergent products, sold under var ....etc

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advantages and disadvantages of digital tachometer pdf

Tachometer (Revolution counter, tachometer, tachometer, the RPM gauge) is an instrument for measuring the rotational speed of the disk or, as in the machine.The engine or other device usually displays the number of revolutions per minute (RPM) on the calibrated analog dial, but digital displays are becoming more common. The word comes from the Greek (Tachos speed) and Metron ( measure). In fact the word tachometer and speedometer are of equal importance: a device that measures the spe ....etc

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S
The SATRACK System: Development and Applications
Thomas Thompson, Larry J. Levy, and Edwin E. Westerfield
ATRACK has been a significant contributor to the development and operational
success of the Trident Weapon System, and it continues to provide a unique
monitoring function that is critical to the maintenance of the U.S. sea-based strategic
deterrent. This article reviews the background and evolution of this unique Global
Positioning System user application (the first committed user) and discusses its support
of other systems of na ....etc

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