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Biology & Life Sciences

Is Water colourless ?

There are two kinds of water: salt water and fresh water. Salt water contains large quantities of salt, while fresh water has a dissolved salt concentration of less than 1%. Only fresh water can be used as drinking water.  Water is the only substance on earth that is found naturally in three forms: liquid, solid and […]
Science

Like an earthquake is there is Moonquake ?

The Moon (or Luna) is the Earth’s only natural satellite and was formed 4.6 billion years ago around some  30–50 million years after the formation of the solar system. The Moon is in synchronous rotation with Earth meaning the same side is always facing the Earth.The Moon has much weaker gravity than Earth, due to […]