One example of power from a non–renewable resource, that has less of an effect on the environment than burning fossil fuels, would be geothermal power. hydropower. nuclear power. wind power.

Geothermal, hydro, and wind power are all examples of renewable resources.  Nuclear power is the only one here listed as non-renewable.  Nuclear power is also relatively cleaner and safer compared to other  non-renewable resources.  

For example, coal, petroleum, and natural gasses are all non-renewable resources that release carbon dioxide and other greenhouse gasses when burned.  On the other hand, nuclear power doesn't release any carbon dioxide or greenhouse gasses, because it doesn't rely on the burning of fossil fuels.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force