What Is the Difference Between Isolation and Quarantine?
What Happens When You Are Quarantined and What’s the Difference Between Isolation and Quarantine? Governments use quarantines to stop the spread of contagious diseases....
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How Does the Severn Bore Occur?
How Does the Severn Bore Occur? A bore in this sense is a tidal wave of great height and speed caused by the meeting of two tides or the rush of a tide up a narrowing...
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What Is Coronavirus Disease 2019?
What Is Coronavirus Disease 2019? How Can I Avoid Getting or Spreading the Same. Coronavirus disease 2019 (COVID-19) is an illness caused by a novel virus. When a...
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What Is a Pangolin and How Much Does It Cost?
What Is a Pangolin and How Much Does It Cost? The pangolin has walked the earth for 80 million years. Described as a living pinecone and an artichoke with legs, it’s a...
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What Makes Lotus Flower Leaves Water Repellent?
What Makes Lotus Flower Leaves Water Repellent? The lotus flower has a special or sacred place in world religions like Hinduism and Buddhism. It is a symbol of purity,...
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Who Were Humboldt and Ritter?
Who Were Humboldt and Ritter? Friedrich Wilhelm Heinrich Alexander von Humboldt (1769-1859), and Carl Ritter (1779-1859) were two Germans whose combined travels and...
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What Is Hantavirus and How Does It Spread?
What Is Hantavirus and How Does It Spread? Hantavirus is a virus that is found in the urine, saliva, or droppings of infected deer mice and some other wild rodents...
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Why Do Locusts Swarm and How Long Does It Last?
Why Do Locusts Swarm and How Long Does It Last? Certain conditions favor the creation of locust swarms: unusually heavy desert rains, favorable winds, good crops after...
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Why Were Early Maps Decorated?
Why Were Early Maps Decorated? Many early maps were decorated because the map-makers or cartographers had little real idea of geography and presented the world in...
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Why Are There Locks on Some Canals and Rivers?
Why Are There Locks on Some Canals and Rivers? Locks are watertight chambers which enable boats to ascend or descend to different levels in a canal or river. The lock...
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