What Is Tarmac?
What Is Tarmac? Tarmac is a hard black material used for roads, parade grounds or anywhere that a hard, even and durable surface is needed. It is a mixture of tar...
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How Is a Sheet of Paper Made?
How Is a Sheet of Paper Made? A sheet of paper consists of vegetable fibres of different sizes, twisted and intertwined with each other and finally squeezed together to...
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Why Are Some Metals Chromium Plated?
Why Are Some Metals Chromium Plated? Some metals are chromium-plated to make them look attractive and to prevent them from corroding or rusting. Chromium is a...
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What Is a Benthic Zone?
What Is a Benthic Zone? The benthic zone refers to freshwater, brackish, and saltwater environments. Depending on the water body, the benthic zone may include areas...
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Why Do Stars Blink or Twinkle?
Stars blink or twinkle when we observe them (from the surface of the earth) because we are viewing them through different layers of turbulent (swirling) air and...
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