Question 18

Glacial ice as it advances

Glacial ice as it advances is capable of transporting the largest particles due to its immense mass and the mechanical processes involved in glacial movement.

A) Glacial ice as it advances

This option is correct because glaciers are powerful agents of erosion and transport. They can carry large boulders and sediments that are embedded within the ice, moving them over great distances as the glacier advances.

B) Steadily flowing water in a stream

While steadily flowing water can transport sediments, it typically carries smaller particles such as sand, silt, and clay. The capacity of water to transport large particles is limited compared to glacial ice, making this option incorrect.

C) The wind

Wind is generally effective at moving fine particles, such as dust and sand, especially in arid environments. However, it lacks the strength to transport larger particles like those carried by glacial ice, rendering this option incorrect.

D) Ocean waves on a sandy beach

Ocean waves can move sand and small pebbles along the beach, but they do not have the capacity to transport large boulders or heavier materials like glacial ice can. Thus, this option is also incorrect.

Conclusion

Glacial ice as it advances is definitively the most effective mechanism for transporting the largest particles due to the physical properties of glaciers. In contrast, the other options involve processes that are limited in their ability to carry larger sediment, confirming that glacial ice is unique in its capacity for transporting massive materials.