When was discovert water

3.8 billion years ago

Explanation:

it was discovered in 3.8 billion years ago

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

first industrial revolution - the first wave of the industrial revolution lasted from the late 1700s to the mid-1800s. it industrialized the manufacture of textiles and began the move of production from homes to factories. steam power and the cotton gin played an important role in this period.