Why Do Some Acids Cause Burns?
Some acids burn because they have a strong tendency to absorb water, giving out a great deal of heat in the process. Since most living cells
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Hydrogen
When Was the First Gas Balloon Used?
The first gas balloon, filled with hydrogen, was released in Paris in August, 1783 which was designed by a French professor of physics, Jacq
Why Star Is Called a Body of Luminous Gas?
A star is a body of luminous gas, like the sun. But as the stars are much farther away from the earth than the sun, they appear to be only s
Why Are Stars Different Colors?
Why Are Stars Different Colors? Stars are many different colors because some of them are hotter than others. Stars are either red, orange, y
Can Fish Drown?
Fish can drown under certain conditions. It isn’t the water that keeps fish alive, but the oxygen in the water. Fish breathe oxygen, just as