I'm sorry, I'm not sure what you mean by "yjs". Can you please provide more information or context?
Which describes a renewable energy resource?
A renewable energy resource is a source of energy that can be replenished naturally within a short time span, such as solar power, wind power, hydro power, geothermal power, and biomass. These sources of energy are considered to be environmentally sustainable and can be used repeatedly.
Which has been the primary source of energy in the most recent century?
In the most recent century, which spans from around 1920 to 2020, the primary source of energy has been fossil fuels, particularly oil and natural gas. This is mainly due to the rapid industrialization and urbanization that resulted in a significant increase in energy demand, and the relatively low prices and widespread availability of these fuels. However, in recent years, there has been a growing interest in renewable and alternative energy sources due to concerns about the environmental impacts and finite nature of fossil fuels.
It seems like you have entered "yjs." However, this is not a question or a complete statement. If you have a specific question or topic you would like me to explain, please provide more information, and I'll be happy to help!
