Answer:
A sinkhole lake forms by The formation begins with the subsurface dissolution of limestone, ultimately leading to surface collapse. As sediments are washed into the depression, the sinkhole becomes plugged.
Many factors, both natural and human, can cause changes in Earth's energy balance, including: Variations in the sun's energy reaching Earth. Changes in the reflectivity of Earth's atmosphere and surface. And Changes in the greenhouse effect, which affects the amount of heat retained by Earth's atmosphere.
Recently, Russia faces international conflict, especially about Venezuela Problems with EEUU.
Best regards
