Electricity generation is the process of generating electric power from sources of primary energy. For utilities in the electric power industry, it is the stage prior to its delivery to end users (transmission, distribution, etc.) or its storage (using, for example, the pumped-storage method).
Electricity is not freely available in nature, so it must be "produced" (that is, transforming other forms of energy to electricity). Production is carried out in power stations (also called "power plants"). Electricity is most often generated at a power plant by electromechanical generators, primarily driven by heat engines fueled by combustion or nuclear fission but also by other means such as the kinetic energy of flowing water and wind. Other energy sources include solar photovoltaics and geothermal power.
Answer:
The digital divide
Explanation:
When there is an inequality of access to Information and Communication Technologies (ICT) among different people in a society it is known as a digital divide. In other words it is the gap among individuals or groups in terms of access to ICT.
The digital divide was much higher a decade back but now with mobile phones becoming cheaper the divide is reducing.
Answer
Glacial striations
Explanation
when a glacier moves, rocks and sediments in the bottom of the glacier against the ground. this creates grooves known as Glacial striations. In other words, glacial striations are marks and scratches formed by moving glaciers.
Slavery didn't exist in the north.
Primary sources are any sources that are written at the time of an event's occurrence, by an eyewitness. In other words, it's an original source (B is correct). It is usually reliable (A is incorrect) and original (C is incorrect). It can be a compilation, but that is not the definition. (D is incorrect.)
Answer: B
