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What Makes the Wind?
Wind is the movement of air across the surface of the earth, caused by warm air rising and being replaced by cooler air. Except…
When Does Sheet Lightning Occur?
Sheet lightning usually occurs during a storm as the result of a discharge of excess electricity within a single thundercloud. The outline is obscured…
When Does a Geyser Occur?
A geyser occurs when a hot spring erupts, hurling a column of water and steam high into the air. These springs are situated in…
Where Is the World’s Highest Mountain?
The world’s highest mountain is Mount Everest, on the Nepal—Tibet frontier in the eastern Himalayas. Mount Everest was named after Sir George Everest who…
How Can Scientists Control the Weather?
Since the 1940s scientists have discovered techniques by which several weather conditions can be controlled. For example, it is possible to prevent lightning by…