Glaciation Junior Cycle Quiz

What are the two main processes involved in the formation of glaciers?

• Accumulation and compaction

• Freezing and sublimation

• Erosion and deposition

• Melting and evaporation

Explain how a glacier is formed and the factors that contribute to its formation.

• Snow accumulation and compaction into ice, along with the weight causing it to flow downhill

• Sand accumulation and compaction into ice, along with the weight causing it to flow sideways

• Rain accumulation and compaction into ice, along with the weight causing it to flow uphill

• Heat accumulation and compaction into ice, along with the weight causing it to evaporate

Name and describe two erosional landforms created by glaciers.

• Two erosional landforms created by glaciers are U-shaped valleys and cirques.

• Fjords and drumlins

• Canyons and sand dunes

• V-shaped valleys and plateaus

How are U-shaped valleys formed by glaciers and what are their characteristics?

• U-shaped valleys are formed by tectonic plate movement and have narrow, deep bottoms

• U-shaped valleys are formed by volcanic activity and have gentle slopes

• U-shaped valleys are formed by wind erosion and have steep sides

• Glaciers erode the landscape, carving out U-shaped valleys with steep sides and a wide, flat bottom.

What are two examples of depositional landforms created by glaciers and how are they formed?

• Canyons and valleys

• Moraines and drumlins

• Mountains and plateaus

• Lakes and rivers

Explain the formation of drumlins and moraines, and their significance in the landscape.

• Drumlins and moraines are both formed by the movement of tectonic plates.

• Drumlins are formed by the movement of glaciers, while moraines are formed by the deposition of material by glaciers.

• Drumlins are formed by the deposition of material by rivers, while moraines are formed by the movement of sand dunes.

• Drumlins are formed by volcanic activity, while moraines are formed by erosion.

How does glaciation affect the landscape in terms of shaping the land and creating unique features?

• Glaciation causes the land to become smoother and flatter

• Glaciation has no impact on shaping the land

• Glaciation leads to the formation of deserts

• Glaciation shapes the land by carving out valleys, creating moraines, and shaping mountains through erosion and deposition.

Discuss the impact of glaciation on the formation of fjords and cirques, and their significance in geography.

• Glaciation has no impact on the formation of fjords and cirques.

• Glaciation leads to the formation of deserts and canyons through erosion.

• Fjords and cirques are formed by volcanic activity, not glaciation.

• Glaciation leads to the formation of fjords and cirques through erosion.

What role do glaciers play in climate change and how does their melting contribute to rising sea levels?

• Glaciers reflect sunlight and cool the Earth, and their melting adds water to the oceans, contributing to rising sea levels.

• Glaciers absorb sunlight and warm the Earth, and their melting reduces sea levels

• Glaciers cause extreme weather patterns and their melting has no impact on rising sea levels

• Glaciers have no impact on climate change and their melting has no effect on sea levels

Explain the concept of positive feedback loop in relation to climate change and glaciation, and its implications for the environment.

• A process where a change in one factor has no impact on any other factor, leading to a stable system.

• A process where a change in one factor leads to a decrease in another factor, which in turn reduces the original change.

• A process where a change in one factor leads to an increase in another factor, which in turn amplifies the original change.

• A process where a change in one factor leads to an increase in another factor, which in turn cancels out the original change.