Which renewable energy source is used quite frequently in the u. s. and canada? nuclear power, hydroelectricity, coal, or oil

The answer is Hydroelectricity.

Explanation:

Hydroelectricity is referred to as the electricity, power, electricity which are  produced from generators driven by turbines that convert the potential energy of fast-flowing water or falling  into mechanical energy.

It can also be called a power generation technology. it  is build or made when moving water rotates a turbine shaft is transformed to electricity with an electrical generator

The United States and Canada mostly used it as their energy source.

why do you think kush in nubia is not as well-known as egypt?

the correct answer is a) egypt and china.

egypt and china are two of the world’s oldest civilizations known by man. both ancient empires have left a great historic and cultural legacy to the world through archeology. both civilzations developed complex social relations, had deep religious beliefs, had dominion of agriculture and left writing records to understand their customs and culture.

among the requirements to consider a civilization, we find urbanization, writing records, a place of residence, agriculture methods, technological specialization, means of transportation, currency, population density, social stratification, and political integration.