Glaciares en movimiento

Glaciers, massive ice formations on Earth for thousands of years, appear stationary but actually move due to their size and weight. The pressure at their base causes some ice to melt, forming meltwater that acts as a lubricant, reducing friction and allowing glaciers to advance. This movement is driven by gravity, and many glaciers are now moving faster than ever, up to 50 meters a day, constantly changing and advancing.

How long have glaciers been present on Earth?

• For a few decades

• For hundreds of thousands of years

• For millions of years

• For a few centuries

What causes the ice at the bottom of glaciers to melt?

• Wind

• Earth's core heat

• Sunlight

• Pressure from the glacier's weight

What role does meltwater play in glacier movement?

• It increases friction

• It evaporates quickly

• It acts as a lubricant

• It freezes the glacier

How fast can some glaciers move today?

• Up to 500 meters a day

• Up to 5 kilometers a day

• Up to 50 meters a day

• Up to 5 meters a day

What is a common misconception about glaciers?

• They are always stationary

• They are made of rock

• They are found only in Antarctica

• They are unaffected by climate