The wide range of available mobiles has allowed people to choose a phone that suits their lifestyle and individual needs, ranging from a phone with a built in FM radio to one which allows access to the internet. ... This system has now been switched off in Australia and replaced by Code Division Multiple Access (CDMA). 2nd generation systems which are digital with a European digital standard, Global Systems for Mobile Communications (GSM), was introduced into Australia in 1993 by Telstra and is used by Optus, Vodafone, Hutchinson/Orange. 3rd generation systems are also digital and availabl...

• Word Count: 3397
• Approx Pages: 14

Over the past several years, temperatures around the world kept rising. Sometimes it's unbearable for people on this planet. "The temperature during an eight-day heat wave in Chicago in July 1995 hovered around 100 degrees Fahrenheit. High levels of humidity made the air feel even hotter, creating an almost unbearable and, ultimately, fatal environment. 556 number of deaths was attributed to the heat, which struck the elderly" ("Issues and Controversies: Global Warming "). Until human populations soared and began burning fossil fuels, greenhouse gases remained in relative balance. ...

• Word Count: 3357
• Approx Pages: 13
• Grade Level: High School