What Is a Dam and How Does It Function?
What Is a Dam and How Does It Function? Dam is a barrier built across a river or sea which is high enough to stop the water flowing over it. In a river dam, the water...
Read MoreWhat Is a Dam and How Does It Function? Dam is a barrier built across a river or sea which is high enough to stop the water flowing over it. In a river dam, the water...
Read MoreWhy Are There Many Kinds of Soils? Soil is one of the principal substrata of life on Earth, serving as a reservoir of water and nutrients, as a medium for the...
Read MoreInk is made from a pigment, or dye, and a liquid, called the vehicle, in which the dye is dissolved. There are two chief types of ink: Writing ink which can be washable...
Read MoreHow Does a Squid Use Its Ink to Escape Enemies? Squid (and also octopus) belong to a group of animals called “Cephalopods” and these animals all shoot out...
Read MoreHow Does a City Purify Its Water? Water in its natural state is often dirty, and usually must be purified to be safe for consumption. After water is drawn from a lake...
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