Question

what is the ultimate source of energy driving earths weather systems?
the sun
ocean currents
wind turbines
fossil fuels

Explanation:

The Sun is the ultimate source of energy for Earth's weather systems. Solar radiation heats the Earth's surface unevenly, driving atmospheric circulation (wind) and ocean currents, which are key components of weather. Fossil fuels are energy reserves, wind turbines are energy converters, and ocean currents are driven by solar energy, not the source.

Answer:

A. The Sun