Dams are not associated with economic advantages.
Dams DO associate with changes to waterway ecosystems, siltation behind the dam, and dam maintenance and breajs,
Frogs are said to have two lives because they live on land and in water. When they are born, and then as they grow up to live on land.
<span>Tri- in phosphate meand three. Tri- is formed from the Latin word "tres" and Greek word "treis".It is usually used in the beginning of nouns and adjectives that have three as part of their meaning.In chemistry, it means having three atoms, groups or equivalents.</span>
