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Introduction The shifting from hunting and gathering societies to agrarian societies allowed people to stay in one place and grow their food. Until the industrial revolution, most people had to grow their own food, using their own labor. As the economies shifted toward an industrial society, people moved away from …

Introduction The HACCP program is a systematic approach to the identification, evaluation, and control of food safety hazards. It is a regulatory requirement for many areas of food processing, including meat (FSIS), poultry (FSIS), egg products (FSIS), seafood (FDA), and juice processing (FDA). There are HACCP requirements that are unique …

First of all, anyone can learn to program a computer. Computer programming doesn’t require a high IQ and an innate proficiency in advanced mathematics. Computer programming just requires a desire to learn and the patience never to give up. Programming is a skill like swimming, dancing, and juggling. Some people …

No one can predict exactly when a volcanic eruption will take place. There are clues, but no one knows exactly when. Sometimes a volcano will erupt when scientists are studying it. Volcanologists have a high fatality rate among scientists because forecasting eruptions is so difficult. Predicting Volcanic Eruptions Volcanic eruptions …

What would make a good prediction? Knowing where, when, and the magnitude of the quake would make it possible for people to evacuate. A Good Prediction Scientists are a long way from being able to predict earthquakes. A good prediction must be detailed and accurate. Where will the earthquake occur? …

All the Packet Tracer activities, Virtual Laptop, and Virtual Desktop activities are available within your IT Essentials Version 5 course in Netspace. However, you can also get easy access just to these activities if you register for this Companion Guide on the Cisco Press website. create an account, and register …

Humans have changed the natural balance of the carbon cycle because we use coal, oil, and natural gas to supply our energy demands. Fossil fuels are a sink for CO2 when they form, but they are a source of CO2 when they are burned. The equation shows that when propane …

What is electronic waste? We obtain resources from developing nations. We also dump waste on these nations. Many of our electronic wastes, which we think are being recycled, end up in developing countries. These are known as electronic waste or e-waste. People pick through the wastes looking for valuable materials …

Fossil fuels are made from plants and animals that lived hundreds of millions of years ago. The plants used energy from the Sun to form energy-rich carbon compounds. As the plants and animals died, their remains settled onto the ground and at the bottom of the sea. Layer upon layer …

Introduction The minimum environment required for a java program to run is called JRE (Java Runtime Engine). JDK is the minimum environment required for the development of Java Applications. Java Runtime Engine (JRE) It is an environment that is required for executing a Java application. Very popular usage of JRE …