"... when the computer detects a keyboard connected,..." (paragraph 2) The underlined word is closest in meaning to ....

Geyser A geyser is the result of underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the earth. Since temperature rises approximate...

Supply & Demand: How Market Works The two basic terms used most often by economists are supply and demand . The amount of something that is available-the supply-and the amount of something t...

Trees and plants are also living beings. They need food, water and air for survival. It is interesting to know how they take their food. Plants get their food both from the earth and the air. If...

How Chocolate is made: Have we wondered how we get chocolate from? Well this time we will enter the amazing world of chocolate so we can understand exactly how chocolate is made. Chocolate is ta...

Tornados occur when the conditions that cause thunderstorms are unusually violent. Winds blow in opposite directions around a strong updraft start a narrow, violent whirl. Centrifugal force effectivel...