Cambios en la Tierra: formación de la tierra

The video tutorial explains how soil has been forming and changing over billions of years. It covers different processes of soil formation, including deposition by wind and water, and the cooling of lava. Examples of sand dunes and stone banks illustrate deposition, while lava cooling demonstrates another method of soil creation.

What are some of the natural elements that have historically covered the ground near schools and homes?

• Mountains and valleys

• Rivers and lakes

• Oceans, swamps, and lava

• Forests and deserts

Which process involves the accumulation of sand, silt, and rocks by natural forces?

• Erosion

• Deposition

• Sedimentation

• Weathering

What natural feature is formed by the wind depositing sand over many years?

• Valleys

• Mountains

• Dunes

• Canyons

How does lava contribute to soil formation?

• By eroding existing soil

• By mixing with water

• By breaking down rocks

• By cooling and forming new soil

What happens to lava after it emerges from the ground?

• It forms new soil

• It evaporates

• It solidifies into rock

• It turns into water