Periodo glaciar

The video discusses periods when Earth's temperatures were low, leading to the expansion of glaciers and ice sheets. The last glacial period ended around 15,000 years ago. Earth has experienced at least five major glaciations, during which large portions of the surface were covered in ice.

What changes occur to glaciers and ice sheets during low temperatures?

What is the significance of the last glacial period in Earth's history?

How many glaciations has the Earth experienced according to the text?

Describe the conditions of the Earth during long periods of glaciation.

Explain the impact of glaciation on the planet's surface.